1)frequency-modulated sound调频声
1.Influence of the lateral nucleus of amygdala stimulation on the auditory responses to frequency-modulated sound in auditory cortex;刺激大鼠杏仁外侧核对听皮层神经元调频声反应的影响
2)noise FM噪声调频
1.The computing method of power spectrum of gauss white noise was studied and the computing equation of noise 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 of noise 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 the noise 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。
英文短句/例句
1.Analysis of Performance on Anti-FM Noise Jamming of WBDF Circuits宽-限-窄电路抗噪声调频干扰能力分析
2.Noise-frequency modulation jammer location in passive systems based on delta-modulation coding基于Δ调制编码对噪声调频干扰源的无源定位
3.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
4.Research on shipboard radar anti noise frequency modulation jamming based on envelope filtering基于包络滤波的舰载雷达抗噪声调频干扰研究
5.Space Target Detection Performance Analysis of Noise FMCW Radar噪声调频连续波雷达空间目标探测性能分析
6.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
7.Estimation of TDOA for Locating Noise-Frequency Modulation Jammer in Passive System对噪声调频干扰源的站间到达时差测量
8.Research on a New Algorithm for Identification of Noise FM Jamming Band Width by Video Waveform of Radar一种基于雷达视频波形的噪声调频干扰带宽辨识算法的研究
9.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
10.Influence of Noise FM Jamming on The Target Detection Ability of Ground-based PD Radar噪声调频干扰对地面PD雷达目标探测能力的影响
11.frequency modulation noise level on carrier载波的调频噪声电平
12.A STUDY OF THE SPIKES FOR AN FM SYSTEM--A NEW NOISE MODEL调频接收尖峰噪声的研究——一种新的噪声模型
13.FM Noise Measurement System Using Delay Line Discriminator and Its Applications延迟线鉴频器调频噪声测量系统及其应用
14.FM/AM Noise Test Set for a Pulsed Radar用于脉冲多普勒雷达的调频/调幅噪声测试设备
15.FM and AM noise of the oscillator is one of the important specifications.振荡源的调频调幅噪声是一项重要的技术指标.
16.Simulation of Jamming from Different Noises to Linear Frequency Modulation Pulse Compression Radar不同噪声对线性调频脉冲压缩雷达的干扰仿真
17.Investigation and analysis on the low frequency noise-induced hearing loss among workers of precision manufactory某精密制造厂低频噪声对接触者听力损伤调查
18.transistor low-frequency noise-meter晶体管低频噪声测试仪
相关短句/例句
noise FM噪声调频
1.The computing method of power spectrum of gauss white noise was studied and the computing equation of noise 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 of noise 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 the noise 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。
3)FM noise调频噪声
1.A method of FM noise measurement is introduced.分析了一种微波源调频噪声测量方法的原理。
4)noise frequency modulation噪声调频
1.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.利用噪声信号作为发射信号进行目标探测具有低截获概率、信号特征不明显、对辐射信号要求不高等一系列优点,因此受到了广泛的重视,本文以噪声调频信号为例,通过数学推导和仿真对噪声调频信号的自相关特性进行了深入的分析。
5)frequency modulated sonar调频声纳
6)frequency modulated sonar调频声呐
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。
