And the spreading modulation , radiation signal modulation and choosing of waveform parameters are also discussed , which is the base of the receiver designing 同时对扩频调制方式、射频信号调制方式以及波形参量的选择进行了重点的论述,并对扩频通信系统的相关指标进行了计算。
First , the paper studies the general platform of analog and digital communication signal modulation and demodulation based on software radio and verifies it with simulation by matlab 本文首先研究基于软件无线电的模拟、数字通信信号调制解调通用结构,并使用matlab编制了基于软件无线电调制解调仿真软件。
The accelerometer used by fuze affects the precision of fuze system directly ; the accelerometer signal modulation and the design of advanced fuze algorithm ensure the fuze system could work reliably and in time 引信用加速度计直接影响引信系统精度;而加速度信号调理和先进的引信算法设计保证引信系统实时可靠地工作。
Additionally , this paper also gives the realization method of software radio demodulation , the result of emulational analysis , the voluntarily identification technology of signal modulation way and the synchronous technology in software radio 另外,本文给出了软件无线电解调的实现方法和仿真分析结果及软件无线电中的同步技术和信号调制方式的自动识别技术。
On the basis of rate equations of frsl , power characteristics and extinction ratio of the converted light are discussed . the relation between relaxation oscillation , small - signal modulation response , modulation bandwidth and the length of fiber ring cavity is analyzed also 根据frsl满足的单模速率方程,讨论了采用frsl进行波长转换时转换光的功率特性和消光比,以及frsl的弛豫振荡特性、小信号调制响应、调制带宽与光纤环形腔长度的关系。