a functional unit that converts a signal into a modulated signal suitable for transmission.
将信号转变成适合于传输的被调制信号的一种操作装置。
in the sense circuit, the angular-speed signal is obtained by synchronous demodulation of the angular-speed modulated signal of the gyroscope with the synchronous signal.
检测部分利用该同步信号和陀螺的输出信号进行同步解调,得到角速度信号。
an asymmetric beat frequency kinematic excitation was adopted, i. e. , only the positive part of a modulated signal excited the mass m2.
使用一种非对称的拍频运动激励,即只用调制波正值部分激励质块m2。
using the characteristics of phased modulated signal , higher output signal to interference plus noise ratio is obtained for a fixed transmitter by transmitting more energy.
该方法充分发挥了雷达发射机的发射能力,即对于固定的发射机来说,以发射更大的能量来得到更大的输出信干噪比。
with this method no a-prior knowledge about modulated signal are requested and a comparable good recognition result can be obtained under low snr environment.
该算法无需提供任何信号调制参数的先验知识,并且在较低的snr条件下获得很好的调制模式识别效果。
the problem of estimating the parameter of a linear frequency modulated signal embedded in additive noise is considered.
研究了加性噪声中线性调频信号的参数估计问题。
the conclusion that the modulated signal produced by the probe is directly proportional to the under-test electric field can be proved by the scattering matrix and reciprocity formulation.
由散射矩阵和互易定理可以证明探头在被测点所产生的散射信号与被测点的电场分量成正比。
arguments are given highlighting the link between the spectrum of the modulated signal and the invariant probability density function of the chaotic system generating the modulating signal.
分析了被调制信号的频谱与混沌系统产生的调制信号的不变密度函数之间的关系。
its basic idea is to partition the constellation optimally by coding, so that the maximal distance between the modulated signal vectors can be obtained.
它的中心思想是:采用编码的方法将信号空间做最佳划分,使的已调信号矢量端点之间有最大的欧式距离。
the principle of digital modulated signal is analyzed in this paper. based on instant character parameters, a kind of digital communication signal demodulation method is established.
分析了信号数字调制的基本原理,提出一种基于信号瞬时特征参数的数字通信信号解调方法。
wideband linear frequency modulated signal is a kind of waveform commonly used in ground-based wideband imaging radar.
宽带线性调频信号是地基宽带成像雷达的一种常用波形。
the interference effects of single frequency, digitally modulated signal and radar signal to fm tv systems are studied by means of the subjective and objective measurements.
通过主观测量和客观测量研究了单频、数字调制信号和雷达信号对调频电视系统的干扰效应。
its foundation on which many types of middle frequency modulated signal are produced is the theory of orthogonal modulation and digital up converting.
它采用正交调制与数字上变频方法,可以生成多种中频调制信号。
to estimate carrier frequency of digitally modulated signal whose modulation type is unknown, a carrier frequency estimation method for digitally modulated signal is proposed.
针对未知调制类型情况下数字调制信号的载波频率估计问题,提出了一种适用于数字调制信号的载波频率估计方法。