a_project_of_mobile_compny

简单实现基于加权分数傅里叶变换的混合载波系统(Simple Implementation of Hybrid Carrier System Based on Weighted Fractional Fourier Transform)

M-PSk(M=2,4,8)-grayencoded, in AWGN channel,plot BER and SER, compare it with theorical results

使用Matlab计算信源熵，利用信息论与编码所学知识完成实验(Using Matlab to compute source entropy)

步进频率雷达目标的运动参数估计 (Target Motion Parameter Estimation of stepped- frequency radar)

OFDM系统中ldpc编码的解调matlab源程序！(LDPC coded OFDM system demodulation matlab source!)

OFDM系统的自适应功率和比特分配算法，实现系统资源的自适应分配（2)－原创(adaptive allocation for OFDM system)

QPSK的调制和解调，解调部分包括时钟和载波的同步等(QPSK modulation and demodulation, the demodulation section includes a clock and carrier synchronization)

说明：  该MATLAB用以计算LTE下行业务数据在高斯信道下QPSK的误码率(The MATLAB is used to calculate the error rate of QPSK of LTE downlink data in Gaussian channel)

通过伪随机序列进行频率调制，并对相位连续性进行优化。调制信号的自相关函数可以通过谱修正进行旁瓣抑制(Frequency modulation is performed by pseudo-random sequence and phase continuity is optimized. The autocorrelation function of modulation signals can be sidelobe suppressed by spectral correction)

脉冲压缩的匹配滤波。目标距离分别为10米，30米和100米，对于未压缩的脉冲，三个回波信号混叠在一起，不能分辨，而经过脉冲压缩的脉冲信号则可通过匹配滤波收到3个回波信号(Matched filtering for pulse compression.Target distances are 10 metres, 30 metres and 100 metres, respectively. For uncompressed pulses,The three echo signals are overlapped and can not be distinguished. While pulse compression can distinguish three echo signals after matched filtering)