通信仿真技術(shù)

1、物理科學(xué)與技術(shù)學(xué)第四小組 設(shè)計(jì)/4-DPSK或16-QAM調(diào)制器仿真程序， 畫出時域波形、 正交分量、同相分量波形，眼圖，散點(diǎn)圖等。GMSK或OFDM調(diào)制解調(diào)的實(shí)現(xiàn)(至少選做一個)。上述仿真都是假設(shè)在理想同步的情況下進(jìn)行解調(diào)的，若不同步，解調(diào)會出現(xiàn)什么結(jié)果。可根據(jù)不同步的程度進(jìn)行一些簡單分析。如果噪聲不是高斯噪聲，試分析噪聲分布對不同調(diào)制技術(shù)的影響？如果是多徑情況又會怎樣？設(shè)計(jì)/4-DPSK或16-QAM調(diào)制器仿真程序， 畫出時域波形、 正交分量、同相分量波形，眼圖，散點(diǎn)圖等。我們選擇設(shè)計(jì)16-QAM調(diào)制器仿真程序，畫出相應(yīng)的時域波形、正交分量、同相分量波形、眼圖、散點(diǎn)圖等。16QAM預(yù)備知識

2、： QAM表達(dá)式：)cos()(0kkktAtsTktkT) 1( tAtAtskkkkk00sinsincoscos)(tYtXtskkk00sincos)(QAM是振幅相位聯(lián)合鍵控信號QAM可看作是兩個正交的振幅鍵控信號的疊加16QAM預(yù)備知識 16QAM產(chǎn)生方法： 1、正交調(diào)幅法，即用兩路獨(dú)立的正交4ASK信號疊加，形成16QAM信號。 2、復(fù)合相移法，即用兩路獨(dú)立的QPSK信號疊加，形成16QAM信號。AM16QAM預(yù)備知識 我們所使用的是第一種方法產(chǎn)生16QAM信號。 實(shí)現(xiàn)4ASK信號的產(chǎn)生clear;T=1;M=4; %四進(jìn)制fc=1/T;N=500;delta_T=T/(N-1)

3、;input=0 1 0 1 1 0 0 0 1 1 0 1 0 0;input1=reshape(input,2,7); %重新整形為2行7列t=0:delta_T:T;for i=1:7hold on;01234567-4-3-2-101234原序列：原序列：0 1 0 1 1 0 0 0 1 1 0 1 0 016QAM代碼clear;M=16;k=log2(M);n=100000; %比特序列長度samp=1; %過采樣率x=randint(n,1); %隨機(jī)產(chǎn)生二進(jìn)制比特流stem(x(1:50),filled); %畫出相應(yīng)的二進(jìn)制比特流信號title(二進(jìn)制隨機(jī)比特流);xlab

4、el(比特流序列);ylabel(信號幅度);x4=reshape(x,k,length(x)/k); %將原始的二進(jìn)制比特序列重新每四個一組分組，并排成k行l(wèi)ength(x)/k列的矩陣xsym=bi2de(x4.,left-msb); %將矩陣轉(zhuǎn)化為相應(yīng)16QAM相關(guān)圖形0510152025303540455000.10.20.30.40.50.60.70.80.91二 進(jìn) 制 隨 機(jī) 比 特 流比 特 流 序 列信號幅度16QAM相關(guān)圖形0510152025303540455005101516進(jìn) 制 隨 機(jī) 信 號信 號 序 列信號幅度16QAM相關(guān)圖形-505-5-4-3-2-1012

5、345QuadratureIn-Phase16QAM信 號 的 星 座 圖11100010000111010011001010001000111001010001111000111001010110101010110111110111101010011000110111001000011101010101010101111110011101011000011011000111010000101111110101001101011000010100110101001000001011000100110111100100000110100101011001001001001100100111110

6、010101011000101010101000111111000100011110000110101000101100111000111100001111111011101101001001001100110100101111100010000010110011000111001001011110010110000011110010111011001000000111100100110010000101110110101011001111010010111110110101011100011110101010110100001101101100101001011101110110100001

7、101110010100111110111101010001110010000101011111100001101010100011110100101100100011011011001110110010110101110010110000110110000101101000000101011111100010000101010010111011001110011011010000101001010000010011010001110111110100001000000000110000111110011000100011011010111010000010000101000000000010

8、111001010000001001110111000100111000101110111010100101111100101101011111111101011001010000110011010011101010100111111010100001001100100010111010100100101010011011111111110010001100100010110111110001111101010000010011011110011000011010110100110010111111001011111001010011111011101000001001111110110100

9、000011100001001111100110000100011110011000110100011010111101000111011001000001101001111001101101000111101110111010000011111111010111110001110000100100100100100100010010111100011001011010001010100110100100011001000010010111000110000001000101011011100010101000100100101011010101101000100010101110111100

10、100010101010111101000111000010010110110100010110010100111110111011001001111100101011000010110010001101011011100111111011000110100100001100111111100010011010001010001001010010000000000101001001101101000110000000000110100111001101111001001011100010100100111101100001010010110111110000000000000101111101

11、110111011010101011100000110000110011011110001000010110101000100010110110010110111000010110101100011010001001001110110000110010001110101110000011101110001001001011100001001101101010101100001010001101110111000101111111001110101011011000111001000010101000011000001101001011000010101010001110110110101000

12、001101010110110100001001110101000001100011000010110111100001000001011011101100101101111000010001100001111111101100100110010011110110000100000101000100111011101010000000011001111111100111001010100101001111111110001110001010111000010011001001011111100001011101001010100110101111000110010010110011101110

13、001110111000011011001100110001010101010110001011110001000001100000001111100000101010101010110100011011111100010100000111100011000001001010000011001000111010000011000001110010101011001001110100010101011001010010011011100011001110100101100101000110101101011010010011111010101100010001000010110010111011

14、101010001010001010011111001110010110000110100001101011110001001110110110011111100111011001111000010000101000001011010011011110111011100101101111010000101010010010000001001011111111000100010000101001100010100111111001111101000111010000000110000001101111000001000110010010110011100101111010110010101001

15、001011111010111000011111111110011101110010100110100110111000001110111101010010000011010001001010101101110000110110111011100001000011111000100011000111111011100100101011001111100111000010110100001011011111001101101100010101000110111010111011011001010101111010111111011111110101011100011101011001100011

16、110000101001000110110000100001110011101001111100100101111010011011001111000000011110011010001000011101001100001011011011101101010011011000110001100011101001111101011001111011100010100001001001110001111011110011101101110110110001001110001001110110111011110111011001010000110110001010100110010000011100

17、100111111111001000010010100101100110011001110110001110011000001001111011110100100110100100100010010010101011001111000001011001111111110101100000011001011100011000010100100000001010001010011100000011000110001011011110110111010100100011011001110000010001010101101111101100110010010111100100011110111100

18、100101101111000001011101111101101101000100000110011001000100000001100011111111011000110000000111110111100000110000001101011111101001001011000111010111001110011010111010100000011011010111110011001001000100101001110011000011000000010010000101110001010010000001110111100110110111100011100000101000011101

19、100001100000000100110101101100100100001100111101111101011010111010011101010010111011111011000111111110010100101111001101001101010101111000110001110001011010110001101000011101010000100111111011100101100100100101110111010000001010001100000000010101100100101110101110101000001001100000011110000100001100

20、111010111100011001000011101101000110100101101101010001100010100001001010010000110100001100000011000010101000011111110111010001010001110010001100010111101000001011101100000101010011001111010011010011001001001001010001010100101000111100011000001101111001101001011000000100011111100111010001000110011000

21、110000100100110001100110000101010111000111100001101110000101110001100001101111000001101100001011000101110110000111110111000011000000000001111001010000100111110111001101100010101111110001000101011001011011011111001100101110010110100001010000101101111001111001000110011000111100101010001111000100100100

22、010101010011100100111110101101000011111011110111101011110001111111011001110011101000100000111100010001110001100110111100111010000111111010000101110000011011111111010010110110111001010110001101100100000110111100110000010011110000000101000100001011101010010000111011110011110010101010000110110111000011

23、110000010110001010111100011101000001110111011111000010100100001100010011001011101100110100111111111011010110010001100011011101010000011100111011010000001100010011110111101000000000000010111011010101011000111010000010110010001101110101111100010001000011111011001110001101011010100001111011011100011001

24、100111100000001000101011011100001110000110100011110101110110110101001101010110011011111110111111010101011010100101100101110000001001011100010010010011011000000000101000001100000011001111000100000010101001000011100000001010111101111000000010011100100110110010101000001000110011011010001011111100011111

25、011010111100011101000011100001010111000101110010001111100001110010101000101000101011001100011010011001110100111010100010101111100001101000001010001001011110000100011111110101100110111000111110000100011000000111011110100100100001011100011001100000011001111111000111111100111101000000001000011101001111

26、011010111100100001111010111110010110010000011100101100101001101000100010110101011010100010100100010100110010001011111110111101000100000100010100010011001101011111111101010101011000000010011011111010100100000011111110010001100111001100010101101001011110111011001110011110011011011111001110010100110110

27、111101010001100010100100010011110001110101001000001001001111101001001010001110010001010111111101100010111010001111110010111010000001001000010100000001000011000111101101110001000011101110101100101100111110000001000001111010100100101110010001101111010011001000100110110100011110000101111111110100110111

28、111010010000000000111101011110011100100011000001111010111111001011100110101011010100010100110011111011110001010000000101100110011111111011010000010100100011100001101000110111011010101011100101010000000110001100100101010111010101101110110101010110110001011100111000010110001111001111011110000100100001

29、101001011011011111000011001011001100000010100111000111000010110111011001101101111000101010110001000010010011011011100100101111111001011000111101010110100000100010100100001110011100000010010011100111100100111010010000110111010111101111101011000001100010000111100111010111010110010100010001100011001100

30、100001100010010101010000001011010010101011101001100010001111010011100011011111001010001101101000110001100010111001100000011111010001100001110001001000100000101111010000100101001111110110101110111001111011010011000011001101101101010110011110111100010110000100001110001110101100001001011110000111011101

31、010111010111110000001101100011001110000001010110010001000110110000011000000111110110100110111111011000000110100001011001110100001110110101110101101011000001000110011011001010001000001100110101110100000010101111101011001100110110010011100110101010001110100001101011110011111001110001100100100110000000

32、110101110000101100101100001101011000111011101011110011100101000011011001001011000110111100001000110111001010111110100010000110001001001111101001000111101011010000011110110101100001001110001110000100101011000011011011101110111010110001000001011111100101110110010111011111110000010110101000001010110101

33、000100101110000000001111110111100110101101100011001001011011000000011000100010000001100000111100111011110110101000000100000100000100110111001010111001000010111011111110011100010000100100000101100011110000000010100011011100100101101001110100011101111110110110001101111001010000010111101110100001000100

34、001101100010001010101000110010100110010011000101110100000001111000001001001011111110110001000100100110000010110101101111101100101011100111000111011000110001000001010010010110100100101101101100111111000001111010110001010101001010101101001001000110000100101100101110010100111011111110000111100110001011

35、001011000111011000111100100001110001110001111000100100001001010000010000110100011101000001000000010100001001101010010110100101000000000010011101010111001100000001010011100101101100110111100100001101010110010101100001110010100100000111011000001101011101011010111011111100010001110010011110010010001100

36、111010000000111101001110000111111100100100010010011100101000111010001001000111101110010001101001101000000101100011100101000110010100001011101111000101111111101100000001011111010101101001110111000001111011011011111011111000000111000000001101111101011011100100000011111000010000110011111001011110000001

37、110100111111110000001001100001111100001111000000101110110110110011110001000010111011001100001001011110110110110101010100001100111101100000001011000101010000011110110010111010101111001011011001001010111000001001000111110001010111000111111100111011011010011001110011101010001100011000010000100100001000

38、111100011010101011010100110011110101000101101011100100100000100101111011001010111000101111000001110111101011000100010111110111011100001001100111110110011100110100011010110110111011001101001001000100111001101001010110110111101011100110011001000101101111001000100100111000000100011000000000011101001010

39、111001101000000111001100010110111010000101110010001111000101110110011110110011111010011111110011100000110110000011000110111011000101111110011011110101001010000111101100011001100101110001010100111011000000110111001011101001001110000111100110001100111100100010010101111101011011111001110101001100011010

40、110111110111100110001111011111110001101001001101101001100001010100011001100010100101010100110100111001111010000101010110001100000000101101001001000100000100101110000100101010000111010011101101110010010001001000101110110100101011010110011001010111110111001101011000001000000101111100111000000011110000

41、100111110111000010110001110100000101101010101100000001111011110010110000000110011001100000000100110010011000100000001000001100101001110101100010010110100010111001110111000010010100100110000111100011000111011111011110100100011000010100001101011110101111100101010010101001100100010010101010111001000010

42、101000111111110100000110001000000100110111101100100001100000111100111100011000010000011001110000110101010010001100110101111011010001111011010011000001010001110111110110101101000001011001010010101010100001011111100000000100000010100100110010100000101101110111111000100001111110010001000100111011001110

43、011111011001001100100100011001000011000000010011001010111000010000101111100100110011101101111000010001111111111100010000011010010000000011001100100000111001000011101010110110001110010000100010000010100110111011000001111011010110000111111011111111001110100111011001011010111010000111010101011000010011

44、001010111010000100110010000100001100001100110111101001110110000010011101101110010001010101110011001010100101011010010111011100111101110100101110011010100001110001001010110111110110011110000010100000001001111001110000111110110001000000010010010011010010100000110111001001001001101001101010010000110000

45、100000010100000010011111110000110111100000011011110000111010011110110100001000101010010101000100001100111101010011101111111011011011001000000110111110111110111011000110000101101100001000110000011000101101010011011011101001001111010011101111001000001011101000100010111110101100100010011001001011101110

46、000000100100101111011110101100010010000011010110001010010001010100111111101000001100000000001100011111011100100111000001110000101110100011000100110110010111010011110110010101000011010001001110010101110111000110101101101100011000010001000100111011000111111100100010001010110000111011101001100110010000

47、000101110110100101000001001111101010111100110011110111100101101001101111100001111111010100010100000001010111111000010010000000111011010001000110010001000001110110101010001000011101011110010001010011010101101001010010001010101100101111010001001010000010110111011110001100011110101110000101101111111100

48、001000010011000101110110101101000111101001100010001010110000010011111001000010111100010110011101110001100110001011001000100100110100101110011101110011001100100001000010000000011111000101000111000111100001011110100000111000001110011011010110011101000110001001101101001110001110010110001001100010100101

49、000101110011010010010001000011111001110011100100110110000001010110110000001001010111111101001110111001100010110101001100000000010000010000000110000100110000011100100011011011000000000111001110111001110100100110001011101001111111101001110010010111101011001001110111100000101100011000000110101101001100

50、101011000001111011101000010110001101111110011100000010010101011010101101010011000110101000011110010001000011101000000100001101111101100010100100001011011001001100101100000000100010101101000010111100100111101010010011000101011101111101100110110100001010011000010110001110101100110011101001110000100001

51、010001101000010010001101111101111100000011101101111101000010000000011111000111010010110011101100101011011101000000100101100011001100001101000100011110010110101000101001101000110010100111000011111101100000110111000011001011101001101101101000100101111110101111111010000011101011010100100101110100111001

52、011111111101111111111100111100100110001010101101111010101111100110010101110001000011100111000101110011011011100001101101011000011001010010100111101001100001011111101100101111011111000000001100110110101111011111010000010100100111110101010001111110010110100101000110110101001010111100011100110100110001

53、110101010001010110001101100000001110011000110100111100101101000010011001010000100010001011000000111010101101111010010111011101110001000110010100001100101111001101111000011101100110101100101010111101111110100111011000100110110011110110010001011011110110000110001001000100101111010001011010011100011111

54、111011011001001010100100110010000011011000110010000001001111100001111110111010111111010001000011111101101011110110100110000011010011011110010111101000011101101100110111101010110010101111000101011100001011111100001010010100110110110000000000000110100001110010111100000100111101000100101010100101000011

55、101011100001110101000000010010100000110000001011101101000000100010100011000000110110111100111100110100010110001110011010111001011110101010111001010101101110101000001010000111111100101111101010111100000000000100001110000101111110001000000001100111100010111000100011111011100001100111110111001100101011

56、111000110111001000011000011011100011000111100010001011011110011011101101011001110010001011010100000110000110011100001110000101101011011011000011110010011000010111101101101100100101010010001001111111100111000110101111110001011110111011000101101100101111110100001000001010111000001011010001001101101010

57、100110111011001001111011111101011010101001001000111001100010110010111011010001010011010011110110010100101100100011110101000100011010111100111101001000110001010100111011101010001100001100100111011001000110000101101110010011001001011110001001111010111110100011011000101111000010010111100010000011000010

58、101111100011101010111111110110010101010001000101101011110110110110010101110000110111101101100101110001000110111100011111111110000111110010100000100100110010010001100001001000111101101000001000111011001001101100101100110100101000000101011101111101101000011110110011110010110011100001010011100001101100

59、001010010010100010110011110101111010001101000000101100010000001001000011111011000101000001100111011101111111110100100111101000001110010110010101000010110011010111100000101110001110010110101000100010110110101001101001010101011100000101000100000111101111100111100000001000010101101100100111101111010110

60、111000011111100100111011010011001001011011111001111001011101000010110111101010011000101011011110000101000111000111111101010011110111011100110001011110111010110010111110101010111111111101111000111110000110000000010101010110101001001111010000111001010010000100100100000100001100100100010011001111000110