The optimum Likelihood Ratio Test receivers for ideal channels and time dispersive channels are replica correlation detector and replica correlation integration detector respectively.
在理想信道和时间扩展信道中对应的极大似然比准则下的最佳接收机分别为拷贝相关器和拷贝相关积分器,其输出均服从中心或非中心 X~2分布。
In doubly-spread acoustic underwater channels,the received signal is dispersed in both time and frequency,which makes signal detection particularly challenging.
针对主动声纳中时延扩展和多普勒扩展同时存在的双扩展畸变信道,提出了一种基于短时傅里叶变换(short-time Fourier transform,STFT)的时频副本相关器(time-frequency replica correlator,TFRC)。
Approach to signal detection in doubly-spread channels based on STFT
基于STFT的水声双扩展畸变信道检测算法
Double CPSK Spread-spectrum Communication System Based on Orthogonal Channel
基于正交信道的双CPSK扩频通信系统
Typically caused by distortions to the frequency components below the horizontal line frequency.
它沿水平方向逐步扩展,通常是由低于行频的频率畸变造成的。
Application of Wavelet in Detection Dispersive Channel and Feature Extraction of Wideband Echo
基于小波变换的畸变信道检测和目标特征提取研究
isochronous signal distortion tester
等时信号畸变测试器
isochronous signal distortion testing equipment
等时信号畸变测试仪
Ocean is a complicated and changeable channel which may distort the signals and degrade the performance of communication system.
海洋是一个复杂多变的信道,它会使声信号产生畸变从而降低通信系统的工作性能。
The Generalization of Double Parameter Hypothesis and the Exact Solutions of Variant Boussioesq Equations 2;
双参数假设的扩展与形变Boussioesq方程2的精确解
An extended radio channel model of scattering environment for broadband mobile communication
散射环境下宽带移动通信衰落信道扩展模型
Research on Hyper-chaotic Secure Communication with Two Transmitted Channels and Chaotic Spreading Sequences Generated by the Extended Chaotic Maps;
双信道超混沌保密通信与广义映射混沌扩频序列研究
Simulation of Dual M-ary Orthogonal Channel Spread-Spectrum Communication System with Multipath Interference
多径干扰下一种双M-ary正交信道扩频通信系统的仿真
Application of the prefabricated cervical expanded flap with bilateral superficial temporal vascular implantation to repair the bilateral facial scar
双侧颞浅血管同期预构颈区扩张皮瓣治疗双侧面部瘢痕挛缩畸形
On the Latest of the Expansion of Moral Risk Models under Asymmetric Information Circumstance;
非对称信息下的道德风险模型扩展前沿综述
Comparative Study on Basis Expansion Models in Time-Selective Fading Channels
时间选择性衰落信道的基扩展模型比较
A Transmitter Diversity Scheme Based on Labelled Delay Space Time Spreading in Underwater Acoustic Communication Systems
水声多径信道中的标识延迟空时扩展发射分集
A deliberate change in waveshape, introduced either to counteract the expected effect of a subsequent transmission path or to render the signal less susceptible to noise.
有意引入的波形变化,以抵消其后传输通道的畸变作用或减小噪声对信号的影响。
Research on Shape Distortion in Bore-Expanding Process with Titanium Alloy Sheet
钛合金板扩孔成形中的形状畸变现象研究
Shape distortion in bore-expanding process with TA2M titanium sheets
TA2M钛板扩孔成形中的形状畸变现象研究
