The influence of the envelope of pulse radar signal on the intermediate frequency sampling is investigated,especially the influence of non ideal envelope on mirror frequency rejection is studied,and the main influences of mirror frequency and amplitude loss are pointed out.
本文研究了脉冲雷达信号包络对中频采样的影响 ,重点分析了非理想包络对镜频抑制的影响 ,主要是产生镜频、幅度损失 ;作为一种特例 ,详细研究了简单脉冲信号矩形包络边沿对镜频抑制的影响 ;分析了不同系统参数对镜频抑制的影响 ,以保证脉冲边沿特性 ,并尽可能减少镜频影响 。
Based on introducing the principle of interference in the image,a block diagram of image rejection mixer is given,which is not only an image rejection mixer in receiver but also a single sideband modulator in transmitter.
雷达和通信接收系统中,采用镜频抑制混频器能够有效抑制镜像频率,提高系统的抗干扰能力。
Design of a micro-strip hairpin filter with image-reject function
一种含镜频抑制作用的微带发卡滤波器的设计
image interference ratio
镜频抗拒比;镜频抗拒比;镜频抑制比;镜频抑制比
The Effect and Application of Passive Devices on Image Reject in Downconversion Mixer;
无源器件对混频器镜像抑制影响的研究与应用
Design of a micro-strip hairpin filter with image-reject function
一种含镜频抑制作用的微带发卡滤波器的设计
Comparison of Frequency Control Methodsfor EMI Suppression in SMPS
开关电源电磁干扰抑制的频率控制方法比较
image reject mixer
象频干扰抑制混频器
Research on the Peak-to-Average Power Ratio Reduction Techniques for OFDM Systems
正交频分复用系统中峰均比抑制技术研究
image-rejection receiver
镜像干扰抑制接收机
image frequency
像频;镜频;镜频;镜像频率;镜像频率;帧频
RFI suppression capacitor
抑制射频干扰电容器
The device is features very high input impedance, super high CMRR, low noise and wide gain bandwidth.
该放大器具有高输入阻抗、高共模抑制比、低噪声和宽频带等特性。
As a special case,the effect of rectangular envelope edge of pulse signal on intermediate frequency sampling is carefully studied.
作为一种特例 ,详细研究了简单脉冲信号矩形包络边沿对镜频抑制的影响 ;
modulation frequency ratio
调制频率与载频之比
Study of suppressing RF interference by range processing in the coast-ship HF surface wave SIAR
高频地波SIAR射频干扰距离域抑制方法
Method of Highlights Analysis from Soccer Video;
足球比赛视频中的精彩镜头分析方法
The Comparitive Study of the in Vitro Inhibition Effect on Human Glioma Cell Line between FractionC from Naja Naja Actra Venom and Traditional Chemotherapeutical Drugs;
中华眼镜蛇毒组分C与传统化疗药物体外抑制人胶质瘤株作用的对比研究
The Study of Damping of Power System Low Frequency Oscillations by Unified Power Flow Controller;
统一潮流控制器抑制低频振荡的研究
Pilot Design for Co-channel Interference Suppression in Mobile WiMAX System
移动WiMAX系统同频干扰抑制导频优化设计方法
Co-channel Interference and its Restraining Measures in Co-frequency Simulcast Systems
同频同播系统中同频干扰及其抑制对策