Burst-mode transmission is a basilic part in digital communication.Feedforward carrier frequency estimator is widely employed in burst-mode transmission.The signal model of autocorrelation-based feedforward carrier frequency estimator is introduced and four representative estimators are analyzed.At last simula...
FIELD: physics; radio.;SUBSTANCE: invention concerns radio measuring technique and can be used in digital communication systems and radio monitoring, in particular, in clocking and receiving devices of phase-shift keyed signals. The device contains two autocorrelators with quarter-phase processing, ...
Method of sending an analog signal on a digital communication channel by quantizing each sample of the signal. Quantizer Device that converts a real number into an integer selected from a given set. Unvoiced speech Speech sounds generated by forcing air through a narrow constriction in the vocal...
摘要: We use mode multiplexing and demultiplexing in apodized aperiodically poled lithium niobate waveguides to enable characterization of picosecond optical pulses in a collinear but background-free way using autocorrelation and second-harmonic frequency-resolved optical gating....
A digital signal processor for Doppler radar sensing of vital signs autocorrelationcenter clipperA signal processor for the determination of respiration and heart rates in Doppler radar measurements is described. The processor ... B Lohman,O Boric-Lubecke,VM Lubecke,... - 《Engineering in Medicine...
SECURED COMMUNICATION USING SPREAD SPECTRUM TECHNIQUES A PseudoNoise or Pseudorandomsequence is a binary sequence with an autocorrelation that resembles, over a period, theautocorrelation of a random binary ... DCK Charliepaul 被引量: 0发表: 0年 Tài liệu Advanced Digital Signal Processing and ...
3.On the basis of the introduction of the conception and the relevant theory,after analyzing the performance of its autocorrelation,sequence pairs was applied in spread spectrum communication system as a new spreading sequence.在介绍了序列偶定义和相关理论的基础上,分析序列偶自相关特性,将序列偶作为一...
摘要: . 关键词: binary sequences binary Sidel' nikov sequence maximum nontrivial autocorrelation magnitude quaternary sequence reverse Gray mapping Autocorrelation Binary sequences Computer science Digital communication DOI: 10.1109/ISIT.2009.5205276 被引量: 57 ...
A computer motherboard includes a display controller, a digital visual interface integrated (DVI-I) connector, and a switching unit. The switching unit includes four first terminals, two second terminals, and a control terminal. Two of t... D Fengli,Z Shunong,K Rui,... 被引量: 0发表: ...
Code Excited Linear Predictive (CELP) coding is a well-known stochastic coding technique for speech communication. In CELP coding, the short-time spectral and long-time pitch are modeled by a set of time-varying linear filters. In a typical speech coder based communication system, speech is sam...