The paper presents a model for radio noise impulsive amplitude probability (IAP) from electrified railways.
在建立电力机车受电弓滑动产生的无线电噪声脉冲幅度概率（ＩＡＰ）分布数学模型的基础上，计算出不同车速时的脉冲幅度分布曲线，通过求出平均脉冲速率，利用干扰测量仪的相对脉冲响应曲线得出以１６０ｋｍ／ｈ和２４０ｋｍ／ｈ速度行驶的“动力集中型”电牵引列车产生的无线电噪声电平分别比以８０ｋｍ／ｈ运行时的噪声电平高出６ｄＢ和８ｄＢ。
As an international popular topic, statistical measurements of radio noise and disturbance have gained more and more attention.
提出了一种估测数字通信系统误码率的新方法——概率信噪比评估法,该方法基于无线电噪声和电磁骚扰的统计测量。
cosmic radio noise recorder
宇宙无线电噪声记录仪
The Effect on the Shortwave Transmitting Field of the Electrified Railway s Radio Disturbance;
电气化铁道的无线电噪声对短波发信场的影响
Prediction and assessment of radio noise of AC UHV transmission lines based on modal analysis method
基于模态分析法的交流特高压输电线路无线电噪声的预测评估
Uses packet switching protocol based on frequency hop scheme with 1600 hops/s to enable high performance in noisy radio environments .
在无线电噪声环境里，利用基于每秒1600跳跳频表的分组交换协议可以提高系统性能。
The Design of Low Noise Amplifier Circuit in Wireless Transmission System;
无线传输系统中低噪声放大电路的设计
Research and Design of Low Noise Amplifier of Software Radio;
软件无线电构架下低噪声放大器的研究与设计
Experimental Research on Audible Noise and Radio Interference of Ultra-High Voltage Bundle Based on Corona Test Cage
基于电晕笼的特高压导线可听噪声和无线电干扰试验研究
The Low Noise Circuit Design and Realization of Subminiature Wireless Localization Electronic Whiteboard;
微型无线定位电子白板中的低噪声电路设计与实现
Johnson noise
【无】热(激)噪声
Countermeasures of Noise Reduction for Shinkansen Electric-Current Collecting System and Lower Parts of Cars
降低新干线集电系统噪声和车辆下部噪声对策
Reduction of IF AM Interference Based on Virtual Radio Simulation Platform
基于虚拟无线电通信仿真平台的中频噪声调幅干扰的抑制
Research of CMOS Low-Noise Amplifier for Wireless Receivers;
无线接收机用CMOS低噪声放大器的研究
Phase Noise Compensation Technique for OFDM-based Wireless Transmission;
OFDM无线传输中的相位噪声补偿技术
ARM-based library of wireless noise monitoring system
基于ARM的图书馆噪声无线监测系统
they got a bad connection and could hardly hear one another over the background signals.
这条电话线路有背景噪声。
The On-Line Noise Detection System of Electric Machine Based on DSP;
基于DSP的电机噪声在线检测系统
Study on Audible Noise under AC UHV Transmission Line
特高压交流输电线下可听噪声的研究
Flyback Power Supply without Standby Acoustic Using Soft-Skip Mode
采用Soft-Skip无噪声待机模式的反激电源