Modbus-function-code_and-format

SIGNAL DETECTION FOR SPECTRUM SENSING Spectrum sensing is a critical functionality in cognitive radio communications as it must be performed before allowing unlicensed users to access a vacant licensed band. Energy detector is also known as radiometer and it is most common method of spectrum sensing because of its low computational and implementation complexities. The coherent detector, also referred to as a matched filter, can improve detection performance if the primary transmitted signal, s, is deterministic and known a priori.

利用DML算法和SML算法实现到达方位角的估计(Estimation of arrival azimuth using DML algorithm and SML algorithm)

MODBUS协议详细 三部分 GB-T19582 国标(MODBUS protocol detailed three parts GB-T19582)

基于Volterra滤波器的混沌背景弱信号检测()

OFDM系统仿真，适合初学者，程序简单易于理解(OFDM system simulation, suitable for beginners, the program is simple and easy to understand)

说明：  在LabVIEW中Modbus应用编程实例(Modbus library usage)

LFM信号及回波的生成，时域及频谱分析，模糊度函数分析，时频分析，匹配滤波器能量检测、循环相关检测、及fmusic参数估计(LFM signal and the echo generation, time domain and spectral analysis, ambiguity function analysis, time-frequency analysis, the matched filter energy detection, loop correlation detection, parameter estimation and fmusic)

LTE系统级仿真软件，包含完整的3GPP协议栈(LTE system-level simulation software, including complete 3GPP protocol stack)

直扩码分多址DS-CDMA是利用高速的WALSH正交码序列作为地址码，与多用户信息数据相乘得到信息数据的直接扩频信号，再经过BPSK调制后发送出去，经过AWGN无线信道的传输后，在接收端与本地产生的地址码进行相关检测，从中将地址码与本地码一致的用户数据选出，把不一致的用户数据删除。(DS-CDMA DS-CDMA is the use of high-speed WALSH orthogonal code sequences as address code, with multi-user information data has been multiplied by the direct spread spectrum data information signal, and then after a BPSK modulated sent through AWGN channel after transmission, at the receiving end with the locally generated address code associated Detect, which will address code with local codes consistent user data elected to delete user data inconsistencies.)

宽带无线通信OFDM技术.北京邮电大学王文博主编(OFDM broadband wireless communications technology. Wenbo Beijing University of Posts and Telecommunications Editor)