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Simple demonstration of modeling intermodulation tones.

文件是OFDM的系统仿真程序！通过matlab仿真平台来实现！(The system file is OFDM simulation program! Matlab simulation platform adopted to achieve!)

粒子群算法与DVHOP算法的结合，有结果图(Combined with particle swarm optimization algorithm and DVHOP have results in Fig.)

ROOT-MUSIC算法，在MUSIC上进行改进，能够提高分辨力，较好的测出信号的信息(ROOT-MUSIC algorithm, can increase the resolution of information)

利用KNN最近邻算法，对心音信号进行分割并判断，给出第一心音、第二心音和收缩期、舒张期。(Use KNN nearest neighbor algorithm, the heart sound signal is divided and judgment is given first, second heart sound and systolic, diastolic.)

采用直接序列扩频技术的BPSK接收机matlAB仿真，内含说明。(This is a code for simulation of BPSK receiver using Direct Sequence Spread Spectrum. The performnace is evaluated in presence of AWGN and Rayleigh fading.Jakes Model has been used to obtained coefficients for rayleigh fading.)

N. E. Huang的一维emd经验模式分解程序（带汉语注释）(the program of emd)

扩频序列的误码率性能仿真程序，在matlab下运行(Sequence Spread Spectrum BER performance simulation program, run under Matlab)

this is matlab code for pprobality theory which is implemetatde in matab 7,6

用matlab实现语音录放，并且画出频域和时域波形。(Using matlab voice recorders, and draw the frequency-domain and time-domain waveform.)