Fm_signal

CDMA 信道估计matlab程序 内有中文详细注释(CDMA channel estimation matlab program)

水声OFDM通信系统基于导频的信道估计算法研究(Pilot based channel estimation algorithm for underwater acoustic OFDM communication system)

在实际的调谐解调电路中，采用的是非相干载波解调，本振信号与发射端的载波信号存在频率偏差和相位抖动，因而解调出来的模拟I、Q基带信号是带有载波误差的信号。这样的模拟基带信号即使采用定时准确的时钟进行取样判决，得到的数字信号也不是原来发射端的调制信号，误差的积累将导致抽样判决后的误码率增大，因此数字QPSK解调电路要对载波误差进行补偿，减少非相干载波解调带来的影响。(In the actual tuning and demodulating circuit, non-coherent carrier demodulation is adopted, and the frequency deviation and phase jitter of the local oscillator signal and the carrier signal of the transmitting end are present, and thus the demodulated analog I and Q baseband signals are signals with carrier error.)

matlab中离散信号小数点时延的实现算法,可以精确实现一段序列的延时(numerical time-delay)

说明：  横河CS3000培训讲义 DCS经典介绍和操作(Yokogawa CS3000 classical training, introduction and operation of DCS notes)

BER of OFDM with BPSK. There are two files. One is BER of BPSK, the other is BER of BPSK with OFDM

说明：  TCP/IP通信截取指定IP和port的数据包(packet sniffer)

This is book about bluetooth programming and other items. Is good for beginerss.

HART协议解析，非常完整，定能加快研发进度。(HART agreements, some of the information, in the hope that everyone has to help)

ultrasonic curcit amjadmftah@hotmail.com