low_pass_filter

分析瑞利衰落信道下qpsk的snr与ber的关系(The relationship between QPSK SNR and ber in Rayleigh fading channel is analyzed)

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!)

LTE prach的信令分析代码,由协议解析出数据处理需要的信息(The signaling LTE PRACH analysis code, the protocol analysis data processing need information )

对跳频信号在干扰情况下的误码率进行防真，并以对数表示，一定要下(Interference of frequency hopping signals in case of error rate for anti-truth, and to the number that must be under)

在matlab环境下实现通信系统中的BPSK，QPSK，16QAM，调制。成型滤波和匹配滤波都采用根升余弦函数。(In the matlab environment to achieve communication system BPSK, QPSK, 16QAM, modulation. Shaping filter and matched filter are used root raised cosine function. )

OFDM（正交频分复用）系统以其抗多径衰落和较高的频带利用率，得到了众多领域的广泛应用。本文就OFDM系统中关键技术之一的信道估计技术进行了介绍。并分别叙述了OFDM系统和信道估计的意义，归纳了信道估计的分类，最后介绍了MMSE、LS及其改进信道估计算法并仿真出结果。(OFDM（orthogonal frequency division multiplexing) has been widely used in many areas for its good resistance to multipath fading and high bandwidth efficiency.In this paper,channel estimation,which is one of the key technologies in OFDM systems,were introduced. Then we discuss the significance of the channel estimation and the classification of channel estimation.Finally,we study the algorithms of channel estimation such as MMSE,LS and LMMSE,and further get the simulation results. )

c#写的opc客户端，调用OpcDaNet.dll(opc client c# to write, call OpcDaNet.dll)

运用matlab实现8PSK信号的调制与解调(relization of modulation and demodulation of 8PSK signal by Matlab)

一个关于IEEE802.15.4a信道原理的matlab编码(A on IEEE802.15.4a channel matlab coding)

实现AWGN信道下，QPSK调制解调，系统的误码率(Achieving AWGN channel QPSK modulation and demodulation, the BER)