基于动态粒子群算法的动态环境寻优算法

高频雷达 目标检测 最大似然恒虚警方法 可用于weibull分布下的检测(High-frequency radar target detection maximum likelihood constant false police weibull distribution method can be used to detect under)

清音的对数幅度谱，短时过零率，平均能量，基音周期(Voiceless logarithmic amplitude spectrum, short-term zero crossing rate, average energy, pitch period)

74线性分组码matlab 代码段编码部分(74 linear block codes matlab code )

记忆多项式数字预失真，能够完成功率放大器的预失真，效果良好。(Memory polynomial predistortion, to complete the pre-distortion power amplifier with good results)

哈工大的高频地波雷达的仿真程序，可分别计算目标和海洋回波的功率谱密度，以及噪声。(HIT high-frequency ground wave radar simulation program can calculate the target and the power spectral density of sea echo, and noise.)

在空时分组码的MIMO-OFDM系统条件下，对信道，子载波，比特和功率进行分配，仿真结果表明，系统有良好的吞吐量性能(Space-time block codes in MIMO-OFDM system under the conditions of the channel, subcarrier, bit, and power allocation, simulation results show that the throughput of the system has good performance)

DVB-T，DTMB简化的信道仿真程序。设置了三种保护间隔：循环前缀、零添加、伪随机添加。用于研究不同保护间隔下的SNR特性，附带一个不同保护间隔下的频谱显示，可看出三种保护间隔对OFDM频谱陡峭程度的影响。(DVB-T，DTMB channel simulation and spectrum display.)

高斯白噪声序列的产生-使用瑞利分布， C语言产生1000个点的高斯白噪声序列。(Gaussian white noise sequence to produce- produce 1000 using a Rayleigh distribution point Gaussian white noise sequence)

用训练数据优化DPCM方法，对一个余弦信号数据进行标量量化。(we take optimize the training data DPCM method for the cosine signal data scalar quantization to get a wonderfull understanding.)

说明：  升压转换器是一种DC / DC电源转换器，可将电压从其输入（源）升至其输出（负载）。在连续导通模式下（流经电感的电流永远不会降为零），升压转换器的理论传递函数为： 占空比在哪里0.5 在此示例中，转换器从250 V电源馈送RC负载，并且PWM频率设置为31 kHz。 模拟 运行仿真并观察示波器上的波形。确认负载电压（Vout）的平均值非常接近理论值：Vout = 250 /（1- 0.5）= 500V。(A boost converter is a DC/DC power converter which steps up voltage from its input (source) to its output (load). In continuous conduction mode (current through the inductor never falls to zero), the theoretical transfer function of the boost converter is: where is the duty cycle.0.5 In this example, the converter is feeding an RC load from a 250 V source and the PWM frequency is set to 31 kHz. Simulation Run the simulation and observe waveforms on Scope. Verify that the mean value of the load voltage (Vout) is very close to the theoretical value of: Vout = 250 / (1 - 0.5) = 500 V.)