The paper describes various possible causes of RF interferences and their solutions.
随着通信网络功能的增强,造成射频干扰的原因正不断增多,有些容易跟踪分辨,有些则非常微小,难以辨识,尽管在系统设计中可以提供一定的保护,但多数情况下只能对干扰信号在其源头加以控制。
The ML7338(ARM7TDMI core) and RF module RDA5206 are used to demodulate RF signals,recode,remodulate and transmit baseband signals,thus solving the RF interference problem in traditional stations.
该系统主要采用小灵通基带芯片ML7338(ARM7TDMI核)和RDA5206射频模块,实现对射频信号的解调,同时对基带信号重新编码再调制发射,很好地解决了普通直放站射频干扰问题。
The paper studies the necessity of anti-RF interference by analyzing the weakness of GPS down-link signals,and the effect of RF interference by analyzing the difference between RF interference styles,and the relationship between anti-jamming techniques and application platforms by analyzing the structure of universal GPS digital user equipment and special adaptive filtering techniques.
通过GPS系统下行信号易损性分析,研究了GPS用户机抗射频干扰的必要性;通过射频干扰类型分析,研究了射频干扰对GPS用户机性能的影响;通过通用GPS数字用户机结构和自适应滤波技术分析,研究了抗干扰技术与用户应用平台的关系。
The results indicate that the preprocessing not only makes the system has higher ability of target detection but also suppresses the radio frequency interference by 6~7 dB.
该方法通过最大值搜索法进行地波定标、平均插值法消除盲区和统计阈值法消除射频干扰,然后将探测得到的数据进行处理。
As GPS signals arrive upon ground,usually they are very weak and susceptible to radio frequency interference.
GPS信号到达地面后十分微弱,极易受到射频干扰;为提高GPS接收机工作的可靠性,对射频干扰的来源和特点进行了研究;主要围绕载波噪声功率比分析了射频干扰对GPS接收机的影响,并据此解算出射频干扰的距离和功率组合;分析结果表明射频干扰会引起GPS接收机的码环、载波环精度下降,误码率升高;最后对目前存在的各种GPS抗射频干扰技术措施进行了介绍,指出通用GPS接收机主要采用自适应数字滤波器、自适应调零天线等时域、空域抗干扰技术。
RFI Suppressing in Computer System;
计算机系统中的射频干扰抑制
An Approach Based on Sinusoidal Model for RFI Suppression in InSAR System
一种基于正弦模型的干涉SAR射频干扰抑制算法
So not only the EMI and RFI are ameliorated, but all so the rectifier can be protected to not be destroyed by high voltage.
文章介绍了一种吸收二极管阴极指数衰减振荡的缓冲器电路,用此缓冲器电路可有效降低整流桥输出侧指数衰减振荡电压的幅值,从而改善电磁干扰(EMI)和射频干扰(RFI),防止整流二极管因尖峰电压过高被毁坏。
Some ways of suppressing radio-frequency interference;
抑制广播射频干扰的方法
Based on the present situation of nuclear safety in our country and relevant experiences from other countries,this paper tries to probe into the requirements and test methods about how safety-related instrument and control system to accommodate electromagnetic interference,radio-frequency interference and power surges in the environments of nuclea.
分析了先进的仪表和控制系统的技术发展状况 ,及其新技术应用对电磁环境兼容性的影响 ,并在我国核安全现状基础上 ,通过国外一些相应的技术经验和信息 ,探讨了运行在核电厂环境下的安全相关仪表和控制系统对电磁干扰、射频干扰和电源波动的兼容性要求及评价方法 ,为我国建立和健全在这一领域的法规和要求提供借
Accoding to the basic principle of Short-Time Fourier Transform(STFT),and aiming at the instantaneous characteristic of radio-frequency interferences(RFI) in a chirp radar,the paper provides a method for supressing RFI that utilizes STFT to detect RFI in time-frequency domain,and uses the prognostication based on AR model.
提出了一种适合于高频地波雷达射频干扰滤除的方法,该方法基于短时傅立叶变换(STFT)的基本原理,针对单一频率的射频干扰在线性调频雷达中的特点,利用STFT在时频面上检测出射频干扰,通过时域滤波和建立AR模型产生预测数据滤除射频干扰的影响。
The Radio Frequency Interference(RFI) makes the most performance degradation for the Synthetic Aperture Imaging(SAI) and the object detection of Stepped-Frequency Ground Penetrating Radar(SFGPR).
步进频率探地雷达应用中,射频干扰严重影响合成孔径成像效果和目标检测性能。
RFI suppression capacitor
抑制射频干扰电容器
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
An Approach Based on Sinusoidal Model for RFI Suppression in InSAR System
一种基于正弦模型的干涉SAR射频干扰抑制算法
What does UTP cable rely on to reduce signal degradation caused by EMI and RFI?
(非遮蔽双绞线是靠什麽减少讯号下降造成的电磁干扰和射频干扰?
Colloquium on Light Pollution, Radio Interference and Space Debris
光污染、射频干扰和空间残块问题座谈会
Complete filter units for radio interference suppression--Part 1: Generic specification
GB/T15287-1994抑制射频干扰整件滤波器第一部分:总规范
Fixed inductors for radio interference suppression--Part 1: Generic specification
GB/T16512-1996抑制射频干扰固定电感器第1部分总规范
The application of digital radio frequency memory for jamming r adar
数字射频存储器在雷达干扰中的应用
Research on Anti-interference Strategy of UHF RFID System
超高频射频识别（UHF RFID）系统抗干扰策略的研究
Effect of perturbation frequency and spray pressure on liquid alloy jet instability
干扰频率与喷射压强对合金射流的影响
sideband splatter
邻近频道干扰, 边带干扰
image interference
图像干扰;镜像干扰;镜像干扰;影频干扰;虚源干涉
Its interference way covers mainly electric magnetic radiation, conduction and induction coupling.
变频器的干扰途径主要有电磁辐射、导、应耦合。
The Research on the PCSS Anti-jamming Performance and Mapping Method;
并行组合扩频系统抗干扰性能及映射算法研究
Study on Anti-EMI Suppression Materials Used for RFID System
用于射频识别系统的抗电磁干扰抑制材料研究
Signal Simulation Method of Anti-jamming Test for Anti-ship Radar Seeker in RF Anechoic Chamber
反舰雷达导引头射频暗室抗干扰信号模拟方法
A new design used in large area laser screen for gun of high firing frequency
一种大面积抗干扰高射频激光光幕靶设计
Design of A Double-path Low-frequency Electromagnetic Interference transmitter Based on C8051F005
基于C8051F005的双路低频电磁干扰发射机设计
