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正弦调频信号 Sinusoidal FM Signal英语短句 例句大全

时间:2021-03-08 09:52:47

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正弦调频信号 Sinusoidal FM Signal英语短句 例句大全

正弦调频信号,Sinusoidal FM Signal

1)Sinusoidal FM Signal正弦调频信号

英文短句/例句

1.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

2.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

3.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

4.A New FFT Based Algorithm for Sinusoid Frequency Estimation基于FFT的正弦信号频率估算新方法

5.Study of PWM sinusidal bell current signal source脉宽调制型正弦波铃流信号源的研究

6.Sine-wave AM-FM jamming正弦波调幅调频干扰

7.Study on Sinusoidal Frequency Estimation Based on Maximum Likelihood Estimator;基于最大似然法的正弦信号频率估计研究

8.A High-accuracy Frequency and Amplitude Estimation Algorithm of Sinusoid Signal;一种正弦波信号频率幅值的高精度估计方法

9.Detection of WeakSine Signal in Certain Frequency Band Based on Duffing Oscillatior基于Duffing振子的某一频段微弱正弦信号检测方法

10.A New Algorithm for Two-Dimensional Frequency Estimation of a Complex Sinusoid一种新的复正弦信号二维频率估计算法

11.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

12.The Cramer-Rao Lower Bound for Parameters Estimation of Signals with Sinusoid Modulated Phase正弦调制相位信号参数估计的Cramer-Rao下限

13.Design of adjustable sine wave generator based on Xilinx FPGA IP CORE基于Xilinx FPGA IP CORE的可调正弦信号发生器设计

14.sine-random generator正弦-随机信号发生器

15.Gravitational waves signals look like sine waves and occur at different frequencies that depend on their source.引力波信号看起来象正弦波,但根据他们自己的震源有不同的频率。

16.A Research of Fast and Accurate Recursive Algorithm for Frequency Estimation of Sinusoid Signal正弦波信号频率估计快速高精度递推算法的研究

17.According to the characteristic, we can detect weak signals buried in the noise environment and estimate their frequency.根据这种特性,可以检测出淹没在强噪声背景下的微弱正弦信号或相位编码信号并估计其频率。

18.high-frequency and modulation frequency signal generator高频调频信号发生器

相关短句/例句

cosine frequency modulation signals余弦调频信号

3)sinusoidal signal modulation正弦信号调制

4)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。

5)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。

6)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。

延伸阅读

正弦正弦sine正弦[菌.班;c““yc」三角函数(trJ即nometxic彻犯tions)之一:夕二Sm无定义域是整个实轴,值域是区间【一l,1].正弦是奇周期函数(周期为2幻.在正弦和余弦(cos流)之间存在公式sin Zx+cos Zx二1.在正弦和余割(c%eca幻t)之间存在公式l SlllX=—COSeCX正弦的导数是 (sinx)‘=c挑x.正弦的不定积分是了sin二J二一。os二十。.正弦的幂级数展开是x 3 .xs sm戈“工一亩+丁一“’,一田<“<羌正弦的反函数是反正弦(往戊s比).在复自变量z的正弦、余弦和指数函数之间存在Euhr公式(Eular fonn山a):e‘;“eos艺+1 sin二,e,乙一e一,zsm:一万万-’井且如果:“ix是纯虚数,则 sinx二一sinhx,其中sinhx是双曲正弦.10,A.r叩砍帕撰[补注]当然,sinx也可由E川er公式或幂级数来定义.一个直观定义如下所述.考虑一个单位圆,其中心在直角坐标系的原点O,以及一个旋转半径OP.设x是口月和口尸之间的夹角(取反时针方向为正),P’是尸在OA上的投影.这时,sinx定义为比(pP‘)/(OP),eosx定义为(OP‘)/(Op),tanx定义为(PP‘)/(01〕‘).{另一个(解析的)方法是从定义在闭区Iblt一1,11上的函数,(、)出发,,(、)一丁;山/V飞二了·当x=土l时,这个积分是反常的,但是收敛.不难看出,中(x)在闭区间[一1,l]上是单调增加的和连续的,在开区间(一1,l)上是可微的,并且在卜耐2,二/2J上取值.因此,它具有在〔一九/2,二/2J上定义、在[一1,11中取值的反函数.这个反函数称为sinx,并且可以证明它的定义域可以延拓到整个实轴.函数甲(、)称为反正弦(暇ine).sinx的图形是正弦曲线(s山usoid)(亦见三角函数(trlgo加服tr沁functions)).

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