PDA

说明：  各种polar编译码函数，包括SC译码，BP译码，SCL译码以及循环检测编码(Various polar encoding and decoding functions, including SC decoding, BP decoding, SCL decoding and cyclic detection coding)

Multiple input multiple output techniques combined with orthogonal frequency division multiplexing (MIMO-OFDM) provide a promising approach for wireless systems. However, a serious drawback of the OFDM system is the high peak-toaverage power ratio (PAPR), which may severely affect the power efficiency of RF power amplifiers. In this paper, we propose a simple method to reduce the PAPR of MIMO-OFDM signals based on the use of unused subcarriers. Instead of processing the signals at each transmitter separately, a peak cancelling signal is generated at one antenna and is then applied to all the others with only simple modifications. Simulation has shown that a minimum 2 dB reduction in PAPR can be achieved for all transmit signals using this approach. As the signal processing is nearly all done at a single transmitter, repetition of the operations at each transmitter is avoided, and therefore the overall cost of the system can be significantly reduced.

说明：  详述LDPC码，有DVB_S2中LDPC编解码分析等以及KDH文档。(LDPC code in detail, there are DVB_S2 in the analysis of LDPC codec and KDH document.)

详细完整的LDPC编译码MATLAB代码！(Detailed and complete LDPC code MATLAB code!)

HART协议解析，非常完整，定能加快研发进度。(HART agreements, some of the information, in the hope that everyone has to help)

压缩感知信道估计OMP算法，有仿真图比较，注释详细(Compressed Sensing Channel Estimation OMP Algorithms, Comparisons with Simulation Charts, Detailed Notes)

说明：  粒子群优化算法工具箱，包含完整的参数优化子程序(Particle swarm optimization algorithm toolbox, including a complete parameter optimization subroutine)

一个关于IEEE802.15.4a信道原理的matlab编码(A on IEEE802.15.4a channel matlab coding)

说明：  运用近似熵算法对cpm信号进行调制识别，然后计算识别率。(The approximate entropy algorithm is used to recognize the modulation of CPM signal, and then the recognition rate is calculated.)

说明：  信道估计的插值算法（中兴捧月）XXXXXXXXXXXX(Interpolation Algorithm for Channel Estimation (Zhongxing Holding Moon))