杂波环境下基于EKF的多传感器的数据融合

QPSK using system generator

MATLAB跳频仿真源代码，展示了整个跳频通信过程，包括信号源产生、2FSK调制、跳频扩频、跳频解调、2FSK解调、抽样判决、恢复原始信号过程，适合初学者(MATLAB frequency hopping simulation source code, showing the entire frequency hopping communication process, including signal source generation, 2FSK modulation, frequency hopping spread spectrum, frequency hopping demodulation, 2FSK demodulation, sampling decision, restoration of original signal process, suitable for beginners)

利用matlab实现雷达目标的有序统计恒虚警检测。(A simulation of target detection for OS-CFAR by using matlab.)

最小二乘算法联合判决反馈均衡器进行信道仿真，用于优化信道性能。(Joint least-squares algorithm for decision feedback equalizer channel simulation, to optimize channel performance.)

QPSK的编译 设定噪声为高斯白噪声，对2ASK、2FSK、2PSK、2DPSK等各种调制方式及相应的主要解调方式下（分相干与非相干）的误码率进行统计，并与理论值进行比较，以图形方式表示误码率与信噪比间的关系。(QPSK compiled Set the noise is Gaussian white noise, right 2ASK, 2FSK, 2PSK, 2DPSK variety of modulation and demodulation mode corresponding to the main (sub-coherent and non-coherent) error rate statistics, and with the theoretical value comparison, a graphical representation of bit error rate and SNR relationships.)

说明：  高阶累积量进行识别常用的数字调制信号，低信噪比下识别率高达90%(It uses the method of high cumulant to recognize usual digital signals, under low SNR, the radio is still over 90%.)

本文档，分别描述了LTE上行PUSCH信道，PUCCH信道，PRACH信道的基带信号处理流程(This document describes the LTE Uplink PUSCH each channel, PUCCH channel, PRACH channel baseband signal processing)

说明：  Goertzel算法是DTMF信号检测的核心,它利用二极点的IIR滤波器计算离散傅立叶变换值,快速有效的提取输入信号的频谱(Goertzel algorithm is the core of DTMF signal detection. It uses the two-pole IIR filter to calculate the discrete Fourier transform value, and extracts the spectrum of input signal quickly and effectively.)

波束形成的几种常用准则，SNR，MSE,LCMV准则。信号+干扰+噪声环境。在干扰方向形成零陷。(Several commonly used criteria of beamforming, SNR, MSE, Suppression for LCMV guidelines. Signal+ interference+ noise environments. Formed in the direction of the interference nulling.)

Analysis and Simulation Model of Physical Carrier Sensing in IEEE 802.11 Mesh Networks