bpsk

This toolbox is used to develop software defined radio for GPS receiver

描述了智能天线在无线通信环境下的各种应用。(Describes a smart antenna in a wireless communication environment, a variety of applications.)

设计一个巴特沃兹数字低通滤波器，其技术指标为：3dB带宽为0.2π，阻带截止频率为0.3π，通带纹波为1dB，阻带衰减大于30dB，采样间隔T=10ms。 1）采用冲激响应不变法； 2）采用双线性变换法设计； 3）采用FIR的窗函数（Hanning窗、Hamming窗或Blackman窗）设计。(A Butterworth digital low-pass filter is designed. Its technical specifications are: 3 dB bandwidth is 0.2 pi, stopband cut-off frequency is 0.3 pi, passband ripple is 1 dB, stopband attenuation is more than 30 dB, sampling interval T=10 Ms. 1) Impulse response invariance method is adopted. 2) Design by bilinear transformation method; 3) FIR window function (Hanning window, Hamming window or Blackman window) is used to design.)

说明：  移动通信网络优化新解决方案_基站覆盖延伸系统的原理及应用(The new mobile communication network optimization solutions for base station coverage extension of the system _ Principle and Application)

ofdm的matlab仿真以及信道估计，瑞利多普勒信道(the matlab simulation of ofdm channel estimation, Rayleigh Doppler channel)

说明：  基带信号QPSK和16QAM的调制仿真，绘制误码率和误符号率的曲线(Base band signal QPSK and 16QAM modulation simulation, drawing error rate and error symbol rate curve.)

说明：  intelligent transportation system and internet of vehicles

这是自由空间路径损耗的代码。里面有多个m文件(This is the code of path loss in free space. There are multiple M files in it.)

一个关于蜂窝小区和微小区的信道模型的MATLAB例子，很好用。(MATLAB example of a cell and microcell channel model, well used.)

采用卡尔曼滤波器对系统的俯仰角、 滚转角和航向角的误差进行最优估计；设计数据融合的判别准则，并根据判据的判断结果调整卡尔曼 滤波器中的量测信息，使系统可用于小型无人机的定高自主飞行(Kalman filter system pitch angle, roll angle and yaw angle error optimal estimation design data fusion criterion, and adjust according to the criterion of judging the results of measurement in the Kalman filter, making the system set high for small UAVs autonomous flight)