4psk

这个是关于OFDM系统的信道估计的算法的两种方法，分别是OFDM的最小二乘和最小均方误差估计的仿真程序代码(the OFDM system is on the channel estimation algorithm of the two methods OFDM are the least squares and minimum mean square error estimate of simulation code)

说明：  可实现，线性调频信号的产生，波形显示，波形解调和码字解调功能(Realizable, chirp signal generation, waveform display, waveform demodulation and codeword demodulation)

用于检测手机麦克风输入音量大小的DEMO(it s used to detect the volume of phones micphone)

wcdma 编码扩频调制过程。。。。。。。。。。。。。。。。。。(wcdma coded spread-spectrum modulation process )

本书描述了4G LTE / 5G NR 无线接入技术。(This book describes LTE, developed in 3GPP and providing true fourth-generation (4G) broadband mobile access, as well as the new radio-access technology 3GPP is currently working on. Together, these two technologies will provide 5G wireless access.)

OFDM 同步技术研究 Schmidl_Cox算法 定时估计加频偏估计 matlab程序(The the OFDM synchronization technology research Schmidl_Cox algorithm timing and frequency offset estimation matlab program is estimated)

说明：  ISD1420为美国ISD公司出品的优质单片语音录放电路,由振荡器,语音存储单元,前置放大器,自动增 益控制电路,抗干扰滤波(ISD1420 is a high-quality single chip voice recording and playback circuit produced by ISD Company of the United States. It consists of oscillator, speech memory unit, preamplifier, automatic gain control circuit and anti-jamming filter.)

SIM com gsm gprs module tool

四路信号的多路复用研究及仿真实现，通过时隙的分配观察复用前后的波形图。(Four channel signal multiplexing research and simulation implementation, through the slot allocation to observe the waveform before and after multiplexing)

说明：  可用于接收端天线对接收信号的检测，也就是信号检测，只需要输入参数就可以使用(It can be used for receiving antenna to detect the received signal, that is, signal detection, only need input parameters can be used.)