噪声调频信号,noise frequency modulation signal
1)noise frequency modulation signal噪声调频信号
1.Study on the detection ofnoise frequency modulation signal based on spectrum estimation;基于谱估计的噪声调频信号检测方法研究
2.Broadbandnoise frequency modulation signal with high precision is commonly used in modern electronic interference system.宽带高精度的噪声调频信号在现代电子干扰系统中应用广泛。
英文短句/例句
1.Digital hardware implementation of broadband noise FM signal generator system宽带噪声调频信号产生系统的数字化硬件实现
2.Simulation Analysis on the Influence of Noise FM Jamming Signals to BER of DSSS噪声调频干扰信号对直扩系统误码率影响的仿真分析
3.FM stereo signal generator调频立体声信号产生器
4.Time-Frequency Distribution of Acoustic and Vibration Signals Based on Harmonic Wavelet Transformation噪声和振动信号的谐波小波时频表示
5.SNR estimation method of LFM signal detection线性调频信号检测的信噪比估算方法
6.Spectrum Feature of Step Signal with White Noise and Method of Noise Reducing含白噪声阶跃信号的频谱特性及去噪分析
7.The Accurate Calculation of Interference Noise Power in Colour Bar Brightness Signal of FM TV System Interfered by Digitally Modulated Signals数字调制信号干扰调频电视系统彩条亮度信号的干扰噪声功率精确计算
8.Instantaneous frequency estimation of frequency modulation signals in low signal noise ratio低信噪比情况下调频信号的瞬时频率估计
9.Noise-Dependent Sound Reproduetion in a Car: Application of a Digital Audio Signal Processor汽车声重放音量受环境噪声的自动调节技术数字式音频信号处理器的应用
10.A Summarize on De-noising Technology of High-frequency Noise for Hydropower Generating Unit水电机组振动信号去除高频噪声技术综述
11.Power System Oscillation Modes Estimation Based on Ambient Signals Considering Model Order Selection计及模型定阶的低频振荡模式类噪声信号辨识
12.Extraction of Shaft-rate Modulated Electric Fields of a Ship Under Non-Gauss Noise非高斯噪声背景下船舶轴频电场信号的提取
13.THE RESEARCH OF PHASE NOISE AND FREQUENCY STABILITY IN TIME FREQUENCY SIGNAL时间频率信号测量中噪声表征方法的研究
14.Multi-Parameter Estimation of Wide-Band Signals in Impulsive Noise冲击噪声背景下宽频段信号的多维参数估计
15.Extraction of Shaft-rate Modulated Electric Fields of Ship-based under Kinds of Noise多噪声背景下船舶轴频电场信号的提取
16.Matched-Phase Denoising for Linear Frequency Modulation Signals基于相位匹配的线性调频信号的去噪处理
17.Performance research on anti-noise FM jamming of pseudo-random code phase modulation and sine FM combined fuze伪码调相与正弦调频复合引信抗噪声调频干扰性能研究
18.frequency modulation noise level on carrier载波的调频噪声电平
相关短句/例句
noise amplitude modulation jamming(NAMJ)噪声调频干扰信号
3)High frequency noise高频噪声信号
1.High frequency noise in output pulse of Q-switched laser;文中采用泰克高速采样示波器 TDS5000B和1 ns 响应时间的硅光电二极管对调 QDPL 的激光脉冲信号中出现的高频噪声信号进行了研究,表明其时域上的表现形式是高频毛刺信号,频域上则主要表现为1～2 GHz的噪声信号。
4)signal-modulated noise信号调制噪声
5)noise FM噪声调频
1.The computing method of power spectrum of gauss white noise was studied and the computing equation ofnoise FM jamming band was obtained.给出了统一的调频干扰时域数学模型和频域数学模型,推导了均匀分布的高斯白噪声调频信号干扰的功率谱函数计算方法,得出了噪声调频信号的干扰带宽计算公式。
2.Wide band barrage jamming noise is transformed form Baseband noise,which is added to VCO,by the method ofnoise FM.基带噪声加到VCO上,采用噪声调频的方式得到较宽频带的阻塞干扰噪声,噪声频谱的中心位置由加到VCO上的直流偏压大小来控制。
3.In this paper,the performance of thenoise FM jamming signals is analyzed.分析了噪声调频干扰信号的性能,建立了干扰系统和噪声调频干扰信号的仿真模型,仿真出不同干扰频率和不同干扰带宽下噪声调频干扰信号对直扩系统影响的误码率曲线,结果证明了设计的噪声调频干扰模型能够有效的干扰扩频通信系统。
6)FM noise调频噪声
1.A method ofFM noise measurement is introduced.分析了一种微波源调频噪声测量方法的原理。
延伸阅读
调频-调频遥测系统采用调频-调频二重调制方式的频分制遥测系统,简称FM-FM遥测系统，属于模拟式遥测系统。FM-FM遥测系统的抗干扰能力强，遥测精度也比较容易得到保证。模拟式遥测系统大都采用这一类系统。下图为 FM-FM遥测系统的框图。各路被测量经变换器变换成电压信号后去控制各路副载波振荡器。副载波振荡器一般采用压控振荡器（即电压控制的振荡器），其振荡频率正比于控制电压,这样就实现了第一次调频。为了防止路际干扰,各路已调副载波先通过低通滤波器，滤去高次谐波，再送到相加放大器形成多路信号，并通过信道调制器对载波调频，这样就实现了第二次调频。已调频的载波由发射天线发送出去。接收端收到遥测信号后先通过解调器解调出多路信号，再送往各分路的带通滤波器，即分路滤波器，把各路已调副载波分离开来。分离出来的已调副载波送到相应的分路解调器，进行第二次解调，就可以得到所传送的模拟信号。美国对 FM-FM遥测系统已经实现了标准化、模块化、系列化。广泛应用模拟集成电路制成标准部件，提高了系统的可靠性和适应性。
