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costas环解调程序，需要的可以参考一下。costas环解调.m(It is a matlab code for demodulation as costas ring .if you are interested in it, you can refer to it.)

说明：  In order to solve the problem of low bandwidth utilization while the peak-to-average power ratio(PAPR) is reduced.

CMOS在信号接收端的应用，Gilbert混频器的实现(A LINEARIZATION TECHNIQUE FOR RADIO FREQUENCY CMOS GILBERT- TYPE MIXERS)

说明：  是一个关于信道容量和信道估计的很全面的matlab源程序(is one of the channel capacity and channel estimation of the very comprehensive source Matlab)

毫米波 MIMO 中指向不同角度的天线阵的方向图(Directional patterns of antenna arrays pointing to different angles in millimeter wave MIMO)

说明：  用MATLAB进行AM调制解调的仿真实验 包含包络 加噪 调制系数等变量的影响(The simulation experiment of AM modulation and demodulation with MATLAB includes the influence of envelope plus noise modulation coefficient and other variables)

Borland c++ builder串口通讯源码示例程序(Borland c builder serial communications source sample program)

针对传统线性调频(LFM)信号参数估计算法中复杂的搜索和计算问题，提出了一种不需要参数搜索的快速 LFM信号参数估计算法。该算法先用希尔伯特变换估计LFM信号瞬时相位，再用二次相位函数拟合LFM信号瞬 时相位从而得到初始频率和调频斜率的估计(The traditional linear frequency modulation (LFM) signal parameter estimation algorithms and computational complexity of the search problem, we propose a fast search without LFM signal parameter estimation algorithm. The algorithm first estimated with the Hilbert transform of LFM signal instantaneous phase, and then the second phase of LFM signal instantaneous phase function fitting to obtain the initial estimates of the frequency and chirp rate)

不同GI长度的OFDM-QAM系统性能仿真(Performance simulation of OFDM-QAM systems with different GI lengths)

4FSK调制解调的matlab代码。采用相干解调的方式4FSK进行解调，与大多数方案的包络检波不同。基带信号用四种电平来表示，与调制信号相区分。(Demodulation matlab code 4FSK modulation. Coherent demodulation 4FSK demodulates Unlike most programs envelope detector,. The baseband signal is represented with four level distinguish phase with the modulation signal.)