code signal meaning in English
编码代号
编码信号
代码信号
码信号
Examples
- Once has the bandits and thieves to intrude guards against the place , the detector launches the wireless coded signal immediately , the networking center number which installs when is apart from defense area 150 meter within the main engine to send out the police whistle sound to report to the police immediately , reports to the police dials to establish in advance or reports to the police the telephone , the handset number , answers in the police telephone to return puts user pre - record to report to the police the pronunciation , long - distance reports to the police , simultaneously comes the real - time transmission through the internet to deploy troops for defense , to withdraw from a defended position , to report to the police and so on the condition , inquires the historic record through the computer network
该系统还采用美国进口原装芯片与先进的无线数字高频技术微电脑cpu控制器主机组成。在防范地点安装好主机后，并设置在布防状态。一旦有盗贼闯入防范地点，探测器立刻发射无线编码信号，安装在距防区150米以内的主机立即发出警笛声报警，报警时拨打预先设定的联网中心号码或报警电话手机号码，接警电话里回放用户预录的报警语音，远程报警，同时通过互联网来实时传递布防撤防报警等状态，通过电脑网络来查询历史记录。 - Based on the amplitude and phase of two - order cyclic spectrum of phase - code signals , a novel cyclic spectrum estimation approach is proposed to estimate the carrier frequency , chip width , amplitude , initial phase , timing epoch of spreading code under no parameter information . this approach is computationally efficient , and is easy to be implemented , and it shows a good estimation accuracy over analysis
基于相位编码信号循环谱的幅度和相位特性，提出了二阶循环平稳参数估计方法，可庄没有任何参数信息情况下，实现载频、码片时宽、幅度、初相、编码序列初始时间等参数的估计，估计方法计算量少，易于实现，且有良好的估计精度。 - In the dissertation , phase - coded signals and chirp signals are studied . because the two signals have cyclic features , the cyclostationary theory has been applied in the detection and estimation of both signals . some novel methods of detection and estimation are proposed after intensive investigation
本文主要对两种主要低截获概率信号(相位编码信号和线性调频信号)进行了研究和探讨，基于两种信号都具有循环平稳性，将循环平稳理论应用于信号的检测和参数估计，通过深入研究提出了一些有效的检测和估计方法。 - This dissertation mainly studies the pulse compression waveform designing and signal processing , including the following aspects : firstly , by the pulse compression basic theory , the linear frequency modulation signal ( lfm ) , binary phase - coded signal ( bc ) and stepped - frequency ( sf ) signal are discussed respectively including the ambiguity function , pulse compression and spectrum characteristic
本文主要进行脉冲压缩雷达波形设计以及信号处理方面的研究,主要体现在以下几个方面:首先,从脉冲压缩基本理论出发,分别给出了线性调频、二相编码和频率步进信号的模糊函数、脉冲压缩以及频谱特性,对多普勒性能进行了简要分析。 - Pulse compression technique is widely used in modern radar systems . large timeband product signals such as linear frequency modulation signals ( lfm ) , nonlinear frequency modulation signals ( nlfm ) , phase coded signals and so on are used in pulse compression technique to improve the resolution in range domain
现代雷达系统广泛采用脉冲压缩技术,在确保雷达作用距离和速度分辨力的前提下,采用大时带积脉冲压缩信号:如线性调频( lfm ) 、非线性调频( nlfm )和相位编码信号等,提高距离分辨力。