1) nonlinear FM
非线性频率调制
1.
According to the classic theory of ambiguity function and pulse compression,this paper proposes the ambiguity function and the method of the pulse compression of the high order nonlinear FM signal based on MFT.
根据经典的模糊函数和脉冲压缩理论,提出了基于匹配傅里叶变换的高阶非线性频率调制信号的模糊函数和脉冲压缩的方法,其脉冲压缩效果与线性调频信号接近;并进行了仿真,证明高阶非线性频率调制信号可以被压缩。
3) non-linear frequency modulation
非线性调频
1.
In this paper, we present a new frequency modulation function on the basis of features of traditional non-linear frequency modulation signal.
根据非线性调频函数的调频曲线,拟合出一种新的调频函数曲线,使该函数在定义域内的值及其一、二阶导数与调频S曲线高度一致。
4) nonlinear frequency modulation
非线性调频
1.
Nonlinear frequency modulation (NLFM) whose modulation wave is the square of a saw wave is introduced into the fuze detection system.
本文将非线性调频技术引入引信探测体制中,利用线性调频波作为调制信号对射频信号进行二次调频。
2.
This paper studies the design methods of the nonlinear frequency modulation signal waveform.
研究了非线性调频信号波形设计方法。
5) NLFM
非线性调频
1.
Design of NLFM Signal Based Poly-phase Sequence;
基于非线性调频信号的多相序列设计
2.
An Approach to Doppler Compensation of NLFM Pulse Compression
一种非线性调频脉冲压缩的多普勒补偿方法
3.
It proposes to use direct intermediate frequency(IF) to realize pulse compression signal generator,and NLFM signal with bandwidth of 4 MHz can be generated.
论述了脉压信号产生器的实现方法及其优缺点,提出了采用直接中频产生的方法实现脉压信号产生器,可产生带宽为4MHz的非线性调频信号,其谐波抑制、带内噪声和带外杂散抑制均达到或超过-60dB,完全满足雷达的工程要求。
6) nonlinear frequency
非线性频率
1.
By introducing nonlinear frequency, using Floquet theory and referring to the characteristics of the solution when it passes through the transition boundaries,all kinds of bifurcation modes and their transition boundaries of Duffing equation with two periodic excitations as well as the possible ways to chaos are studied in this paper.
本文通过引入非线性频率，利用Ｆｌｏｑｕｅｔ理论及解通过转迁集时的特性，研究了不可通约两周期激励作用下的Ｄｕｆｉｎｇ方程在一次近似下的各种分岔模式及其转迁集，并指出其通向混沌可能的途径
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条