本文提出了一种在加性复高斯白噪声中对单频复正弦信号频率的估计方法。
A method for estimating the frequency of a complex sinusoid in additive complex white Gaussian noise is proposed.
即采用PDA加跳频参数管理软件作为生成器的单一设备模式。
The PDA frequency hopping parameter management software was adopted as the single equipment mode of generator.
针对加性色噪声背景下的多分量线性调频信号参量估计问题，提出了基于相位差分的时频子空间方法。
For the problem of the parameter estimation of multi-component chirp signal in the additive colored noise, a method based on phase difference and time-frequency signal filter was proposed.
采用加矩形窗fft插值算法，谐波的负频分量对谐波计算的误差影响较大。
For rectangular window FFT interpolation algorithm, the negative frequency components of harmonic components have a greater impact on the fundamental calculation error.
目的：探讨中药加激素减少小儿频复发性肾病综合征复发的作用机理。
Objectives : To investigate the effects and principle of Chinese traditional medicine combined with corticosterone in treating infantile frequent recur nephritic syndrome.
分别介绍可寻址用户管理系统和跳频加解扰系统的基本原理和功能特点，以及两种用户管理系统的综合应用。
This paper introduces the basic principles and functions of two kinds of user's management systems and comprehensive application.
这个物种——象许多其它的狐猴一样，象马达加斯加许多其它动物一样，或者象地球上的许多生物一样——处于频临灭绝和迅速地减少的状态。
The species - like many other lemurs, like many other animals in Madagascar, like so much of life on Earth - is endangered and dwindling fast.
这个物种——象许多其它的狐猴一样，象马达加斯加许多其它动物一样，或者象地球上的许多生物一样——处于频临灭绝和迅速地减少的状态。
The species - like many other lemurs, like many other animals in Madagascar, like so much of life on Earth - is endangered and dwindling fast.
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