qpsk_dsp_code

利用matlab软件对各种频率选择性信道进行仿真(Matlab software using a variety of frequency-selective channel simulation)

用于仿真多普勒频移与每条反射波以及到达角之间的关系,可以自行修改参数得到更多仿真结果,MATLAB2009A上运行通过(For the simulation of Doppler frequency shift and arrival angle of each reflected wave, as well as the relationship between, you can modify the parameters of its own to get more simulation results, MATLAB2009A run through the)

说明：  固定权值的常规波束形成，波束主瓣随着权值的变化而变化(A fixed weight of conventional beam forming, beam main lobe with the right and change the value of)

一个DQPSK信号接收与发送部分的软硬件设计。其中IF=70MHZ，信息速率=10MBS，采用带通信号采样技术，数字正交解调和调制技术。NCO频率分辨率为32位，相位分辨率为10位(A DQPSK signal reception and transmission part of the software and hardware design. Which IF = 70MHZ, information rate = 10MBS, the use of bandpass sampling technique, the digital quadrature demodulation and modulation techniques. NCO frequency resolution of 32, phase resolution of 10)

伺服电机主控制模块输入输出特性的简单模拟实现，输入目标电压及反馈的当前电压，输出对电机的控制脉冲波形(The simple simulation of the input and output characteristics of servo motor main control module, the input is target voltage and feedback is the current voltage, the output is the motor control pulse waveform)

说明：  实现雷达的空间谱估计，采用MUSIC算法，可实现多目标的位置估计(Space spectrum estimation of radar)

本代码是基于OFDM系统的一种转换域估计算法，有整个OFDM系统及改进的信道估计算法仿真。包括LS,MMSE,LMMSE,DFT,及改进后的DCT算法。(The code is based on the OFDM system, the conversion of a domain estimation algorithm, the OFDM system and revamp the entire channel estimation algorithm for the simulation. Including the LS, MMSE, LMMSE, DFT, and DCT algorithm improved.)

To understand the transmission scheme for QPSK modulation. To design a simple transceiver structure operating in a noisy channel.

说明：  卡尔曼滤波，对一个做匀加速直线运动的目标进行跟踪，跟踪效果较好(Kalman filtering, do a linear motion with constant acceleration target tracking, track better)

这是一段求信息量的C++程序,对输入的一组数据进行求和,及最终算出其信息量和信道容量(This is for the amount of information for some of the C++ Procedures, a group of input data summation, and finally calculate the amount of information and channel capacity)