frequency-modulation noise

The computing method of power spectrum of gauss white noise was studied and the computing equation of noise FM jamming band was obtained.

給出了統一的調頻干擾時域數學模型和頻域數學模型,推導了均勻分布的高斯白噪聲調頻信號干擾的功率譜函數計算方法,得出了噪聲調頻信號的干擾帶寬計算公式。

Wide band barrage jamming noise is transformed form Baseband noise,which is added to VCO,by the method of noise FM.

基帶噪聲加到VCO上,采用噪聲調頻的方式得到較寬頻帶的阻塞干擾噪聲,噪聲頻譜的中心位置由加到VCO上的直流偏壓大小來控制。

In this paper,the performance of the noise FM jamming signals is analyzed.

分析了噪聲調頻干擾信號的性能,建立了干擾系統和噪聲調頻干擾信號的仿真模型,仿真出不同干擾頻率和不同干擾帶寬下噪聲調頻干擾信號對直擴系統影響的誤碼率曲線,結果證明了設計的噪聲調頻干擾模型能夠有效的干擾擴頻通信系統。

A method of FM noise measurement is introduced.

分析了一種微波源調頻噪聲測量方法的原理。

Using noise frequency modulation signal as transmit signal to do target detection has a lot of advantage such as LPI,not having distinct signal characteristics and having little requirement to transmit signal,so this technology is being paid much attention widely.

利用噪聲信號作為發射信號進行目標探測具有低截獲概率、信號特征不明顯、對輻射信號要求不高等一系列優點,因此受到了廣泛的重視,本文以噪聲調頻信號為例,通過數學推導和仿真對噪聲調頻信號的自相關特性進行了深入的分析。

Analysis of Performance on Anti-FM Noise Jamming of WBDF Circuits

寬-限-窄電路抗噪聲調頻干擾能力分析

Noise-frequency modulation jammer location in passive systems based on delta-modulation coding

基于Δ調制編碼對噪聲調頻干擾源的無源定位

Performance research on anti-noise FM jamming of pseudo-random code phase modulation and sine FM combined fuze

偽碼調相與正弦調頻復合引信抗噪聲調頻干擾性能研究

Research on shipboard radar anti noise frequency modulation jamming based on envelope filtering

基于包絡濾波的艦載雷達抗噪聲調頻干擾研究

Space Target Detection Performance Analysis of Noise FMCW Radar

噪聲調頻連續波雷達空間目標探測性能分析

Digital hardware implementation of broadband noise FM signal generator system

寬帶噪聲調頻信號產生系統的數字化硬件實現

Estimation of TDOA for Locating Noise-Frequency Modulation Jammer in Passive System

對噪聲調頻干擾源的站間到達時差測量

Research on a New Algorithm for Identification of Noise FM Jamming Band Width by Video Waveform of Radar

一種基于雷達視頻波形的噪聲調頻干擾帶寬辨識算法的研究

Simulation Analysis on the Influence of Noise FM Jamming Signals to BER of DSSS

噪聲調頻干擾信號對直擴系統誤碼率影響的仿真分析

Influence of Noise FM Jamming on The Target Detection Ability of Ground-based PD Radar

噪聲調頻干擾對地面PD雷達目標探測能力的影響

frequency modulation noise level on carrier

載波的調頻噪聲電平

A STUDY OF THE SPIKES FOR AN FM SYSTEM--A NEW NOISE MODEL

調頻接收尖峰噪聲的研究——一種新的噪聲模型

FM Noise Measurement System Using Delay Line Discriminator and Its Applications

延遲線鑒頻器調頻噪聲測量系統及其應用

FM/AM Noise Test Set for a Pulsed Radar

用于脈沖多普勒雷達的調頻/調幅噪聲測試設備

FM and AM noise of the oscillator is one of the important specifications.

振蕩源的調頻調幅噪聲是一項重要的技術指標.

Simulation of Jamming from Different Noises to Linear Frequency Modulation Pulse Compression Radar

不同噪聲對線性調頻脈沖壓縮雷達的干擾仿真

Investigation and analysis on the low frequency noise-induced hearing loss among workers of precision manufactory

某精密制造廠低頻噪聲對接觸者聽力損傷調查

transistor low-frequency noise-meter

晶體管低頻噪聲測試儀