I-rife

介绍了用于雷达信号模拟器中的杂波仿真模型。并对单个分辨单元杂波回波信号进行建模和仿真。(Describes the radar signal simulator for clutter simulation model. And a single resolution cells clutter echo signal modeling and simulation.)

1）设计Butterworth型音频抗混叠滤波器； 2）参数： 下通带频率300Hz；上通带频率3400Hz； 下阻带频率280Hz；上阻带频率3600Hz； 通带最大衰减0.3dB； 阻带最小衰减40dB； 3）采用一低通滤波器和一高通滤波器级联； 4）分别确定LPF和HPF的性能指标； 5）求出两滤波器的系统函数和频率响应，并画出其幅频特性曲线； 6）求整个滤波器的系统函数和频率响应，并画出其幅频特性曲线。(1) the design of Butterworth-type audio anti-aliasing filter 2) parameters: passband frequency of 300Hz on pass-band frequency 3400Hz under the stop-band frequency of 280Hz on stop-band frequency 3600Hz passband maximum attenuation of 0.3dB minimum stopband attenuation of 40dB 3) the use of a low-pass filter and a high-pass filter cascade 4) separately to determine the performance of LPF and HPF target 5) to derive two-filter system function and frequency response, and draw its increase frequency characteristic curve 6) for the entire filter system function and frequency response, and draw its amplitude-frequency characteristic curve.)

基于模拟退火算法的光学模式转换，为模分复用一种高效转换算法。(Based on the optical mode conversion of simulated annealing algorithm, a high efficiency conversion algorithm is used for modular division multiplexing.)

the pdf entitled The Modulo Lattice Channel The Key Feature in Precoding is attached

说明：  stm32f407 跑马灯实验 原子个例程 学习模块(stm32f407 led run stm32f407 stm32f407 stm32f407)

小区搜索程序，能够在OFDM框架下对信号的调制解调定位等问题进行仿真。(Cell search procedure, to the framework of the OFDM modulation and demodulation of the signal localization issues such as simulation.)

一整套OFDM系统的实现程序，基于梳状导频图案的OFDM系统估计，采用LS信道估计方法，和线性插值法，信道采用瑞丽多径信道。(A whole set of OFDM system, the implementation of the program of OFDM system based on comb pilot pattern, estimates using the LS channel estimation method, and the linear interpolation method, use ruili channel multipath channel. )

MIMO信道容量的累计分布曲线图CDF，不同天线数的比较(CDF, of the graph of the cumulative distribution of the MIMO channel capacity to compare the number of different antennas)

图形界面实现MQTT通信协议的演示例子程序。(This is an MQTT GUI Demo application,to show how to progrrame with MQTT.)

说明：  BER Probability for QAM