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载波频率估计

于 2023-05-12 发布 文件大小:455.55 kB
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代码说明:

应用背景FS = 32 * 10 ^ 6;%采样速率为32MHzFC = 6 * 10 ^ 6; ;%载波频率为6MHzdf = 0.1×FS; ;%载波频偏为3.信噪比= 20; ; ;%信噪比为20dBn = 1000; ; ; ;%数据码元个数T = 0:1 / FS:(N-1)/ FS;F0 = sqrt(2)*罪(2 * pi *(FC + DF)。* T +(π/2));S = AWGN(F0,信噪比,0);% 8比特量化中频采样仿真数据,并写入外部文本文件中问= 8;f_s = S /最大(ABS(s));%归一化处理q_s =圆(f_s *(2 ^(q-1)- 1));%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%关键技术K = 1:长度(q_s) ; ;b_s = dec2bin(q_s(K)+(q_s(K)& lt;0)* 2 ^ Q,Q);对1个问题:问 ; ; ; ;如果b_s(j)= = 1”和,和,和,和,和,肺结核= 1;和其他人,以及其他人和,和,和,和,和,肺结核= 0;和,和,结束,结束 ; ; ; ;fprintf(FID,“%d”,TB); ;最后,结束了 ; ;fprintf(FID,“ ”);终点

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