雷达系统中,相位编码信号对多普勒频率非常敏感。
In the system of radar, Doppler frequency is very sensitive to the coding signal.
相位编码信号是在雷达中广泛使用的一种脉冲压缩波形。
Phase code signal is a kind of pulse compression waveform which is widely used in radar system.
相位编码信号具有较强的似噪声性和良好的低截获概率特性。
The phase code signals have relatively strong characteristic of noise similarity and good characteristic of LPI.
旁瓣抑制问题一直是相位编码信号处理中一个关键性的问题。
Sidelobe suppression has been a key issue during processing of the phase encoding signals.
从多种信号中检测识别线性调频信号、相位编码信号、频率编码信号。
Liner frequency modulating signal, phase coded and frequency coded signal are detected and recognized from all kinds of signals.
脉冲压缩;线性调频信号;相位编码信号;目标回波信号;ADS;
Pulse compression; Linear frequency modulated signal; Phase encoding signal; Echo signal; ADS;
相位编码信号是低截获概率雷达信号的主要形式之一,能够提高雷达的生存能力。
As the major type of signals of LPI radars, the phase-coded signals can enhance the radar survivability.
临界混沌状态的周期振子对噪声具有免疫力,而对微弱的正弦信号或相位编码信号比较敏感。
The periodic oscillators at critical state are immune to noise and have sensitive dependence on weak sine signals or phase-coded signals at the same time.
利用相位编码信号探测高速运动目标时,存在多普勒频率敏感性问题,需要对多普勒频率进行补偿。
When detecting the high-speed moving target by using phase-coded signals, Doppler frequency compensation is necessary because of the Doppler frequency sensitivity of phase-coded signals.
本文研究了一种新型混沌编码的脉冲位置和相位复合调制的脉冲压缩雷达信号。
In this paper, a new Chaotic Pulse Position and Phase Coded Pulse Compression Radar (CPPPC PCR) signal is studied.
本文主要研究了多载波相位编码(MCPC)脉冲信号,以及具有低峰值-平均包络功率比(PMEPR)的多载波脉冲串的设计。
This thesis mainly discusses the multi-carrier phase code (MCPC) pulses signal, and the design of pulses trains with low peak-mean envelop power ratio (PMEPR).
相位编码雷达可以采用一种检测方法实现对该宽带多普勒信号的检测,其结果不但可以指示速度,而且还可以作为速度选通的抗干扰措施。
A detection method will let phased coded radar to detect such wideband doppler signal, whose result not only gives speed information, but also filters ground echo by speed as a anti-jamming measure.
针对相参雷达体制,提出了基于极化和相位编码的雷达信号相关检测方法。
The method of correlative detection of radar signal based on polarization coding and phase coding for the coherent radar is proposed in this paper.
信号采用伪随机编码进行相位调制,相当于是用载频对伪随机码进行上变频。
Using pseudo random code to modulate the signal's phase equals to frequency up-conversion of the pseudo random code by the carrier frequency.
本文阐述了阿达玛变换在线扫描核磁共振成象中应用原理,推出了合成的激发信号相位与阿达玛编码关系。
In this paper we explained the principle of line scan Hadamard transform NMR imaging and deducted the relation of Hadamard cede to the phase of excitation signals.
雷达信号,其中包括啁啾或相位编码的品种,很容易和快速地对一个单杆基础的特点。
Radar signals, including chirped or phase-coded varieties, are easily and quickly characterized on a single-shot basis.
针对相位编码雷达距离旁瓣较高的问题,本文提出了FFT_IFFT法去除大功率信号来抑制距离旁瓣。
To solve the problem of higher range sidelobe of phase-coded radar, the method of removing big power signals with FFT_IFFT is presented in this paper.
为了进一步降低码率,提出了减少信号帧间冗余信息的轨迹编码方法,同时引入了解码端频域无相位综合算法。
To give further bit reduction of the redundancy between signal frames, a novel Sinusoidal Tracking Coding algorithm has been proposed.
它可以根据正交输出型编码器信号的相位关系,输出具有正负极性的模拟电压信号。
The circuit can output analog voltage signals with positive and negative polarity according to the phase relation of encoder signals of orthogonal output type.
本文通过计算多相编码信号(MPSK)相邻码元间的误差能量的方法来确定相位突变值,从而达到对MPSK信号相位编码规律的识别。
In this paper, phase variation value is defined with help of calculating error energy of adjacent code cells of MPSK signal, so that recognition of MPSK signal phase encoding rule can be realized.
同时,结合相位编码步进频率信号形式提出在高速目标情况下实现精确速度测量的两步估计方法。
Simultaneously, the method implementing precise velocity estimation in two steps associative with PCSF signal characteristic under high moving targets is presented.
捷变相位编码脉冲压缩技术是一项新的雷达信号处理技术。
The agile phase-coded pulse compression is a new technique in radar signal processing domain.
本文研究了一类混沌编码信号,利用混沌信号进行雷达信号的相位编码,并且计算了这类编码信号的模糊函数。
This paper analyzes a kind of chaotic modulation signals, the phase-modulated radar signals are generated by chaotic signals, at the same time the ambiguity function of the coded signals is given.
基于相干光的相位编码OCD MA技术依靠光信号的相位变化,利用伪随机序列来编解码。
Based on coherent optical phase encoding OCDMA techniques rely on phase changes optical signals, using pseudo-random sequence for encoding and decoding.
针对相位编码(PSK)信号的参数估计问题,研究了PSK信号的码速率估计算法并将其硬件实现。
To estimate the parameters of PSK signals, the symbol rate estimation of PSK signals and the hardware implementation were researched.
与步进频率信号在高速目标下成像失真相比,相位编码步进频率信号的多普勒性能有很明显改善。
Compared with the range profile distortion produced by SF signal in the presence of high moving targets, PCSF signal Doppler performance is obviously improved.
通过对PS K信号相位特性的分析,采用相关积累的方法充分利用单个脉冲所提供的相位跳变信息,成功提取出PS K信号相位跳变规律,在此基础上进行了相位编码序列的恢复。
How to get the rules of phase-shifting from the coherent integration of single pulse is first introduced, on the basis of which an approach to restoring PSK sequence is derived.
通过对PS K信号相位特性的分析,采用相关积累的方法充分利用单个脉冲所提供的相位跳变信息,成功提取出PS K信号相位跳变规律,在此基础上进行了相位编码序列的恢复。
How to get the rules of phase-shifting from the coherent integration of single pulse is first introduced, on the basis of which an approach to restoring PSK sequence is derived.
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