频率捷变

基于频率捷变和RCS加权抑制雷达角闪烁的研究

Research of Radar Angular Glint Suppression Based on Frequency Agility and RCS Weighting

并且开发了基于CPLD的自适应频率捷变技术，保障雷达能在恶劣干扰环境下维持其检测性能；

We develop the technology of adaptive frequency agility based on CPLD to maintain the detection ability under the severe jamming environment .

频率捷变PD雷达高度计实时信号处理系统

The Real-time Signal Processing System of Pulse Doppler Radar Altimeter with Frequency Agility

自适应超宽带频率捷变防空导弹PD引信

Self-adaptive Ultra-wideband Frequency-agile PD Fuze for Air-face Missile

计算机仿真是研究频率捷变雷达对抗的有效方法，通过频率捷变雷达（FAR）和干扰的动态对抗仿真来反映FAR（或干扰）的性能。

Computer simulation is a valid method to study the performance of frequency agile radar ( FAR ) or jamming in the ECM circumstance .

小型化Ka波段低相噪、快速频率捷变合成器

Miniaturized Ka-band Low Phase Noise and Fast Hopping Frequency Synthesizer

基于ABA处理和幅度加权的频率捷变单脉冲雷达角闪烁抑制技术

The Frequency-agility Monopulse Radar Angular Glint Suppressing Technology Based on ABA Processing and Amplitude Weighting Method

适用于频率捷变MTI系统的捷变序列

Sequences Designed for Frequency - Agile MTI Systems

DDS采用4-FSK输出方式有效地缩短了频率捷变时间。

The time of frequency switch reduced greatly by adopting 4-FSK output mode with the DDS .

计算机仿真实验结果验证了频率捷变和修正AR模型算法理论的正确性，以及在与其他方法比较的情况下，两者结合在去相关性能上的优越性和工程实用性。

The simulation results verify the validity of the theory of frequency agility and modified AR model , as well as the advantage and practicability with the combination of two methods when comparing with other methods .

基于素数序列族，提山了适用于频率捷变MTI系统的频率捷变序列的两种构造方法。

Two constructions of frequency - agile sequences designed for frequency-agile MTI systems , which based on prime sequences , are presented in this paper .

针对频率捷变幅度加权角闪烁抑制方法进行改进，提出了一种基于ABA（amplitude-basedangle）处理的幅度加权角闪烁抑制方法。

Frequency-agility amplitude weighting method is a common one to suppress the angular glint . The amplitude weighting method based on ABA ( amplitude-based angle ) processing is developed to suppress the angular glint .

OFDM技术与认知无线电技术的结合，可以优势互补，相得益彰，构成频率捷变的传输系统。

OFDM technology is suitable for multipath propagation of wireless high-speed data transmission in mobile communication , the combination of OFDM technology and cognitive radio technology makes the two technologies complement each other , both constitute the transmission system of frequency agility .

本文引入跳频通信地址编码理论，结合无线电引信的具体特征，提出了适用于无线电引信的频率捷变序列的选择原则，并构造了基于RS码的宽间隔频率捷变序列族。

According to the theory of address coding in the hopping-frequency communication , the paper presents the principle of selecting the frequency agility sequence which fit to the radio fuze and constructs the frequency agility sequence family based on the RS codes .

本文介绍了一种射频频率捷变信号发生器的设计方案和工作原理，讨论了模拟相位内插（API）、延时鉴频器、锁频环、单环频率合成和频率快速跳变等关键技术。

In this paper , the design and principle of a agile RF signal generator is introduced , and the key techniques including the API , delay line discriminator , frequency locked loop , frequency synthesis of single loop , frequency fast hop etc. are discussed .

多模多频无线通信、智能于机、雷达、卫星通信等对频率捷变高性能射频集成芯片的需求，使基于射频MEMS技术的可重构网络技术得到广泛的重视。

With great demands of high-performance agile wide-band radio frequency ( RF ) integrate chips from multiple-mode and multiple-frequency wireless communications , intelligent mobile phones , radar and satellite communications , the reconfigurable networks technology based on RF MEMS has been in active research .

介绍了频率捷变在相控阵雷达目标多径DOA估计中的应用，并采用修正的MUSIC算法（MMU-SIC）以提高多径信号DOA估计性能。

A target multipath DOA estimation algorithm based on frequency agility for phased array radar is introduced . The modified MUSIC ( MMUSIC ) algorithm is applied to estimate the DOA 's of the multipaths so as to increase the DOA estimation accuracy of correlated signal sources .

当参考源使用普通晶体时，测量结果表明：频率捷变时间<10μs，输出单边带相位噪声谱密度约为-70dB/Hz（偏离载频1kHz）

When a general crystal was used in reference frequency source , the result of measurement is as follows : the frequency switching time is less then 10 μ s , the output SSB phase noise spectrum density is about - 70 dB / Hz at 1 kHz offset .

数字技术在船用频率捷变雷达信标中的应用

Application of Digital Technique in Marine Agile Radar Beacon DIGITAL LIFE

频率捷变信号的频率／方向联合估计

Joint Estimation of Frequencies and DOAs for frequency Agile Signals

频率捷变雷达的快速自动频率调整系统

A Fast Automatic Frequency Regulation System of Frequency Agility Radar

频率捷变脉冲雷达用快速捕获锁相环路

Fast Acquisition Phas-Locked Loops for Frequency Agile Pulsed Radar Systems

频率捷变技术与单脉冲技术兼容的研究

Study of Compatibility between Frequency Agile Technique and Monopulse Technique

频率捷变技术与多普勒滤波的兼容性研究

Study on Compatibility of Frequency Agility Technique and Doppler Filtering

数控非相参频率捷变雷达的抗干扰性能

Antijamming Capability of Digital Electrical Control Noncoherent Frequent Agility Radar

频率捷变雷达信号源实时校准技术研究

The Technology of Work and Calibration Simultaneously in Frequency Agility Radar Signal Generator

几种干扰频率捷变雷达的方法简析

Brief Analysis of Several Methods for Jamming Frequency-agile Radar

雷达频率捷变自适应系统评估

Evaluation of Frequency Agility Radar 'S Adaptive Control System

频率捷变雷达本振源线性化器及其自动测试装置

Linearization Device of Local Oscillator for Frequency-Agile Radar and Its Automatic Measurement System

频率捷变时间测量技术的研究

Study on measurement technolagy of the frequency switching time