正弦调频,sine FM
1)sine FM正弦调频
1.Performance research on anti-noise FM jamming of pseudo-random code phase modulation andsine 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
2.The purpose of this paper is to research the anti-noise AM spot jamming performance of pseudo-random binary code phase modulation andsine FM(PRBC-SFM) combined fuze based on the criterion of signal to jamming ratio(SJR) gain.以信干比增益作为衡量标准来研究伪码调相与正弦调频(PRBC-SFM)复合引信抗瞄准式噪声调幅干扰性能。
3.The spectral correlation function(SCF) of the reconnaissance signal combinedsine FM and interpulse pseudo-random code PM was deduced.推导了正弦调频和脉间伪码调相复合体制信号的谱相关函数(SCF),基于谱相关特征给出了对该复合体制侦察信号的自动识别算法。
英文短句/例句
1.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
2.Parameter Estimation of SinFM SignalBased on Time-Frequency Ridge Extraction and Random Hough Transformation基于时频脊提取-随机Hough变换的正弦调频信号参数估计
3.Sine-wave AM-FM jamming正弦波调幅调频干扰
4.therapeutic unit of sine modulated ultrasonic-medium frequency current synchronization正弦调制超声、中频电同步治疗机
5.The Research and Design of Sine Dynamic Amplitude & Frequency Modulation Water Pressure Generator Device;正弦动态调幅调频水压力发生装置研制
6.Research on Modulation Methods of Sine Wave Output VVVF Power Supply;正弦波输出变频变压电源调制方式的研究
7.phase comparison sinusoidal frequency shift keying相位比较正弦移频键控
8.adjustable sine conducting magnetic jig可调正弦式导磁卡具
9.Each of these pieces is a sine wave with a different frequency.每个小部分是有着不同频率的正弦波。
10.Research on Control Method of Medium Frequency Sinusoidal Inverter Based on DSP;基于DSP的中频正弦波逆变器控制研究
11.EWB Analysis Magnitude Spectrum for the Non-Sinusoidal Periodic Singals;用EWB实现非正弦周期信号频谱分析
12.Research and Implementation on Low-frequency Sine Wave Current Source for Testing测试用低频正弦电流源的研究与制作
13.The Research and Realization of High-frequency Sine Wave Inverter for Wind/Photovoltaic Complemental System风/光互补高频正弦波逆变电源的研制
14.Study on Sine Wave Frequency Estimation Method Based on DTFT基于DTFT的正弦波频率估计方法研究
15.Hardware Implementation an Iterative Algorithm for Single-Frequency Estimation一种迭代正弦频率估计硬件实现研究
16.Design of RF sine wave generator based on AD9951基于AD9951射频正弦波信号发生器的设计
17.A New FFT Based Algorithm for Sinusoid Frequency Estimation基于FFT的正弦信号频率估算新方法
18.Real-Time and Accurate Single Frequency Estimation Approach一种实时精确的正弦波频率估计算法
相关短句/例句
Sinusoid frequency modulation正弦调频
1.,sinusoid frequency modulation and linear frequency modulation signals,the simulation result shows that the characteristic of frequency modulated can be extracted effectively in SNR=5dB.研究了FM-AM转换时频分析的理论及其实现方法,利用高斯滤波器设计了调频信号的调制特征分析滤波器组,并以正弦调频和线性调频两类调频信号为例进行了数字解调分析,仿真结果表明,在信噪比为5dB时,利用FM-AM转换时频分析技术,可以有效提取调频信号的特征信息。
2.As example,the digital demodulation is done to two special signals as example,sinusoid frequency modulation and linear modulation frequency signals.研究了FM-AM转换时频分析的理论及其实现方法,利用高斯滤波器设计了调频信号的调制特征分析滤波器组,并以正弦调频和线性调频两类调频信号为例,进行了数字解调分析。
3)sine frequency modulation正弦调频
1.,the first frequency mixer filters the carrier wave and side band power extraction and the second time frequency mixer filters out thesine frequency modulation signal.提出了伪码调相与正弦调频复合脉冲串引信,给出了复合信号形式,根据其频谱函数的特点,提出了利用复合脉冲信号的边带功率,通过二次混频得到视频(伪码)信号的方法,即第一次混频滤除载波,边带提取和第二次混频滤除正弦调频信号,从而得到含多普勒信息的伪码信号。
4)Sine-wave FM jamming正弦波调频干扰
5)Sinusoidal FM Signal正弦调频信号
6)sinusoid-FM-CW radar正弦调频连续波雷达
1.A digital IF signal processing system forsinusoid-FM-CW radar is designed based on ADC+FPGA+DSP model.采用ADC+FPGA+DSP模式设计了一种正弦调频连续波雷达数字中频信号处理机。
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。
