本程序实现随机数的产生和在相同调制方式下功率谱比较

说明：  做自适应去噪时用到的三篇很有价值的文献，，并有实现程序，(Adaptive denoising used to do three valuable literature, and have the program)

扩频通信的相关仿真文件，希望有帮助，：）(Spread Spectrum Communication Simulation related documents, hoping to help :))

完美的OFDM信道估计仿真程序，可以传输音频。希望对您的研究有帮助(Perfect OFDM channel estimation simulation program can transmit audio. I hope to help your research)

plot smith chart. and by a click parameter is determined.

Blum-Goldwasser Probabilistic Cipher (BGC) Function and Blum-Goldwasser Probabilistic Decipher (BGC) Function

时频分布已被用来提供高分辨率表示大量的信号处理应用程序。然而,高分辨率和准确瞬时频率(如果)估计通常依赖于分布和使用信号相位函数的复杂性。(The time-frequency distribution has already been used to provide high resolution said a lot of signal processing applications. However, high resolution and accurate instantaneous frequency (if) estimates usually depends on the distribution and use of the complexity of the signal phase function.)

功能描述： 小数延迟FIR滤波器，对参考阵元信号signal_ref进行 length(tau) M次延迟，分别得到M个阵元的采样信号 关键问题： 若τ 1.2Ts,则Delay(i) 2,tau_valid(i) 0.2Ts 若τ 0.6Ts,则Delay(i) 1，tau_valid(i) -0.4Ts 当tau_valid(i)>0或<0时，从卷积后的数据y_FIR_delay中取值启示位置不同 函数能够实现输入任意延时tau，输出信号波形与理想波形之间误差很小。( Description: fractional delay FIR filter array element of a reference signal signal_ref performed length (tau) M delay times, respectively, to obtain a sample signal array element M key question: if τ 1.2Ts, then Delay (i ) 2, tau_valid (i) 0.2Ts if τ 0.6Ts, then Delay (i) 1, tau_valid (i) - 0.4Ts when tau_valid (i)> 0 or < 0, the volume data y_FIR_delay product after the Enlightenment values at different positions function can be realized enter any delay error between tau, the output signal waveform and the ideal waveform is small.)

Simulates the movements of a swarm to minimize the objective function

信号频率估计均方误差图，以克拉美洛界（CRB）界做对比分析MATLAB实用程序(Signal Frequency Estimation Mean Square Error Graph to Combine the Kramer (CRB) Sector to Make a Comparative Analysis MATLAB Utility)

灰度变换，用了线性的两种变换 一种是分段的一种是不分段的 用matlab实现了灰度的变换(Gray level transformation, two transformations with a linear one is not a sub-segmented by gray-scale transform matlab implements)