研制一种脉冲调频雷达波形发生器。
A linear or nonlinear pulse FM radar waveform generator was developed successfully.
用单片机作为控制手段，采用脉冲调频（或调宽）方法，达到了较理想的控制品质。
This research is aimed to get higher quality functions by use of single- chip processor and way of pulse frequency modulated (PFM) or pulse width modulated (PWM).
只要恰当地控制粒子束的照射时间，该恒星将有效地成为一台调频电台——以“造父变星”的脉冲为基础载波向宇宙广播。
Time the beam right and the star could be turned, in effect, into an FM transmitter-broadcasting to the universe on the underlying carrier-wave of the Cepheid's pulsation.
提出一种由线性调频与二相码组合而成的新型混合脉冲信号，给出了其数学表达式、处理方法及其模糊函数的表达式。
According to a new type of mixed pulse compression signal, this paper discusses the mathematical expression, the way of processing and the expression of the ambiguity function.
同时运用线性调频脉冲帧同步法，改善了基于差分相移键控的水声数字通信系统的性能。
With the LFM pulse frame synchronization method, the performance of UWA communication system based on DPSK is apparently improved.
本论文讨论了脉冲压缩雷达中两种典型的雷达制式：线性调频雷达和二相编码雷达的干扰。
The jamming of two models of pulse compressed radar, Linear frequency coded radar and bi-phase coded radar, are studied in this dissertation.
在现代雷达中，得到广泛应用的线性调频脉冲压缩信号的雷达距离数据递推器公式还未建立。
The radar range recursion filter formula, which is widely used in present radars, for linear frequency modulated pulse compression signal, has not been formed yet.
通过在特定时刻对DDS生成的信号进行补相，可以使单dds同时生成多个目标的与被测雷达全相参的常规脉冲和线性调频回波信号。
By setting the DDS's offset phase at given time, a single DDS can generate multi-target phase-coherence signals including LFM and general pulse for evaluated radar.
本文利用抽样理论分析了调幅调频脉冲响应抽样的方法及其精度。
This paper analyses sampling method and sampling precision of complex impulse response by sampling theory.
阐明了它与单斜率线性调频连续波信号和脉冲LFM信号模糊函数的区别；
The differences between the ambiguity function of STMFCW signal and single slope linear frequency modulation continuous wave signal and pulse LFM signal are also discussed.
该技术利用线性调频信号（LFM）矩形脉冲的时延值进行时延编码，在接收端采用时延估计技术进行时延解码。
This technique uses different time delay values of the LFM pulse to code the transmitted information, and uses time delay estimation technique to perform decoding.
根据调频步进雷达运动目标的回波特性，首先对压缩后的子脉冲进行包络平移。
According to the moving target's echo characteristics acquired by the frequency-modulated stepping radar, the envelope migration is firstly carried out for the subset of the compressed pulse.
介绍了线性调频脉冲信号高分辨测距的两种基本方法：时域压缩测距和频域压缩测距。
Two basic methods of high resolution range measurement applying LFM pulses are introduced: compression in time domain and compression in frequency domain.
以对线性调频脉冲压缩雷达进行干扰为背景，介绍了间歇采样直接转发干扰的原理与干扰效果。
An operational principle of jamming of interrupted-sampling and direct repeater based on digital radio frequency memory was introduced, and its jamming effectiveness was analyzed.
目前，国外高功率激光驱动器实现远场分布平滑化的主流技术是基于正弦调频脉冲的光谱色散平滑技术(SSD)。
Nowadays, the mainstream of far field beam smoothing technology adopted by foreign high power laser drivers is smoothing by spectral dispersion (SSD) based upon sinusoidal frequency modulation.
信标信号为线性调频信号和脉冲编码信号的复合信号，其中脉冲编码信号用来表征发射信号序号。
The beacon signal is the reunite signal of linear FM signal and pulse code signal, and the pulse code signal is used as a token of emit signal.
首先对脉冲压缩和线性调频脉冲信号进行了介绍，然后研究了线性调频信号的压缩过程及其压缩方法。
After the introduction of the pulse compression and the LFM, the paper studies the procession of the LFM pulse compression and the methods of it.
线性调频脉冲是现代雷达系统中常用的一种重要的大时宽-带宽积信号。
LFM (Linear Frequency Modulation) pulse is a kind of important large time-bandwidth product signal and commonly used in modern radar system.
它通过发射线性调频(lfm)的脉冲压缩信号实现距离上的高分辨率，利用脉冲之间的多普勒信息获得方位上的高分辨率。
It obtains its high resolution in range by transmitting LFM signal and that in aspect by utilizing the Doppler information among the pulsed echoed signal.
该雷达采用调频中断连续波(FMICW)信号，时间同步包括调制脉冲的同步和调制频率的同步。
This radar use FMICW signals, time synchronization consists of pulse synchronization and frequency-modulation synchronization.
全文主要分析了线性调频信号（LFM）的频域脉冲压缩方法及MTI/MTD的算法；
In this dissertation the pulse compression performances of linear frequency modulation signals (LFM) and the algorithm of MTI/MTD are analyzed.
本文研究了线性调频信号脉冲压缩的旁瓣抑制问题，分析了频谱加权法和冲激响应加权法的原理。对两种方法的谱平滑效果。
We study the sidelobe suppression for the pulse compression of the LFM signal, and analyze the spectrum weighting and the impulse response weighting method.
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;
对线性调频（LFM）信号的三种主要数字产生方法进行分析，提出一种基于波形存储直读法的超宽带线性调频脉冲压缩信号数字产生系统方案。
On the basis of the waveform storage method, a digital generation system scheme for ultra wide-band LFM pulse compression signals is proposed in this paper.
介绍了锁相调频的基本原理，用锁相调频的射频直接调制方法实现了脉冲信号的低抖动传输。
The low jitter transmission of pulse signals is realized by direct RF-modulation based on PLL frequency modulation.
因此，调频广播信号作为一种类随机发射信号，具较好脉冲压缩性能、接收机系统误差小而且容易获得的优点。
So the FM signals as an opportunity signals have the advantages of good performance of impulse compress, low system error of receiver and easy access.
干扰信号可以是调频电话信号、调频电视信号或脉冲雷达信号。
The RF signal may be a FM telephone signal, a FM television signal or an impulse radar signal.
线性调频连续波雷达具有低截获特性，在距离速度解模糊方面比普通的脉冲雷达具有较大优势，一直是雷达研究领域的一个重要课题。
LFMCW radar, with its LPI characteristic and greater advantage over monopulse radar in the ambiguity of range and velocity coupling, has always been an important topic in the radar research field.
基于线性调频信号、正切调频信号对脉冲压缩系统进行了仿真，并分析得到了有意义的结果。
The simulation, resulted from the pulse compression system with linear FM and Tangent FM signals, is presented and analysed for the useful conclusions in this paper.
基于线性调频信号、正切调频信号对脉冲压缩系统进行了仿真，并分析得到了有意义的结果。
The simulation, resulted from the pulse compression system with linear FM and Tangent FM signals, is presented and analysed for the useful conclusions in this paper.
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