vhdl按键检测

说明：  基于利尔达2F717N30模组，实现收发互传,MSP430平台(lierda lora module tx or rx base by msp430)

说明：  基于压缩感知的信道估计算法 包括omp等算法(Channel estimation algorithms based on compressed sensing include OMP and other algorithms)

通信中利用匹配滤波，产生斜坡信号，并进行相应滤波(Communication using matched filtering, resulting in ramp, and the corresponding filter)

说明：  resource allocation in cognitive radio

截获接收机采用时频分析进行跳频通信的参数估计程序(Intercepting the parameter estimation procedure of the receiver for time-frequency analysis for frequency hopping communication)

中文RFC文档，不用翻译，对大家学习很有帮助！(Chinese RFC documents, without translation, the right to study very helpful!)

简单实现基于加权分数傅里叶变换的混合载波系统(Simple Implementation of Hybrid Carrier System Based on Weighted Fractional Fourier Transform)

实现了光通信系统的多径、以及不同信噪比下的通信链路信噪比仿真。其中包含OOK/PPM/DPPM/DHPIM/副载波调制(The simulation of communication link signal-to-noise ratio (SNR) of optical communication system under multipath and different signal-to-noise ratio is realized. It contains OOK/PPM/DPPM/DHPIM/ subcarrier modulation)

说明：  对输入信号进行量化，n为你想要的量化级数；可输出量化前后信噪比，量化后信号，和量化后的二进制序列(Quantize the input signal, n is the quantizing series you want; output the signal-to-noise ratio before and after quantizing, the quantized signal, and the quantized binary sequence)

基于matlab的空间调制仿真代码模型，QAM调制(Spatial modulation simulation code)