radarbasics

利用MATLAB软件对OFDM系统做出仿真。仿真中采用QPSK调制技术，并加入高斯白噪声，最终得到QPSK星座映射图以及BER曲线图。由仿真结果可以看出，OFDM在高斯信道具有良好的抗噪声性能，误码率较低。(MATLAB software is used to simulate the OFDM system. In the simulation, QPSK modulation technology is used, and Gauss white noise is added, and the map of the QPSK constellation and the BER curve are finally obtained. It can be seen from the simulation results that OFDM has good anti noise performance and low error rate in Gauss channel.)

说明：  中国移动位置业务Le Ls接口技术规范,详细规范,(China Mobile location Service Le Ls interface technical specification, detail specification,)

说明：  LDPC的matlab仿真，使用BP算法，在BPSK调制信道下仿真(Matlab simulation of LDPC, using BP algorithm, simulation under BPSK modulation channel)

C++实现多种常用数字信号处理算法，傅里叶变换，FIR滤波器，IIR滤波器，卷积等(C++ implementation of a variety of commonly used digital signal processing algorithms, Fourier transform, FIR filters, IIR filters, convolution, etc.)

基于模拟退火算法的光学模式转换，为模分复用一种高效转换算法。(Based on the optical mode conversion of simulated annealing algorithm, a high efficiency conversion algorithm is used for modular division multiplexing.)

说明：  天线模型建立和分析的matlab程序，包含各种基本天线种类。(The matlab program of antenna model establishment and analysis includes various kinds of basic antennas.)

说明：  对2ask、2psk、2dpsk、2fsk的调制仿真(Modulation simulation of 2ASK, 2PSK, 2DPSK and 2FSK)

通信基本仿真,适合初学者学习的代码,包括了调制,分析等等:使用IIR filter的经典模拟滤波器（巴特沃斯Butterworth,切比雪夫Chebyshev）,Bartlett周期图谱，加窗Bartlett周期图谱，基带波形仿真，IIR的贝塞尔滤波器Bessel Filter，二进制对称信道Binary Symmetric Channel仿真，比特序列，Remez滤波，BPSK复合基带信号仿真，载波生成器，椭圆滤波器Elliptical Filter，FFT,FSK调制及解调，高斯噪声Gaussian仿真，直方图，理想AM，线性PLL，BP混淆器，理想MPSK，正交振幅调变（QAM，Quadrature Amplitude Modulation），正交相移键控(QPSK)，Rayleigh Noise瑞利噪声，Yule-Walker Psd功率谱密度函数。(Butterworth Chebyshev)

HART Communication Foundation - Common Tables Specification

分析仿真了LTE-Advanced系统部署Pico后的小区间干扰协调技术.本文针对在LTE—Advanced系统中部署Pico后恶劣的干扰条件进行了详细的分析，并重点讨论了三种可以有效兼容R8／R9终端的增强型ICIC技术。(Analysis and simulation of LTE-Advanced systems deploy Pico Inter-cell interference coordination techniques for LTE-Advanced systems deploy Pico bad interference conditions, carried out a detailed analysis, and focused on the three can be effectively compatible with R8/R9enhanced terminal ICIC technology.)