HF signal generator is the key unit of the water processing equipment. It has good effect on scale inhibition, descaling and bacteria killing.
高频信号发生器是高频水处理仪的核心部件。具有除垢抗垢杀菌的作用。
The classic analysis of high-frequency (HF) protection only takes account of the channel delay effect of HF signal, neglects the delay effect of electric traveling wave.
高频保护传统分析方法仅考虑高频信号在通道中的延时效应，没有分析电气量的行波延时效应。
In the highly crowded HF band, available continuous bandwidth is very narrow, this threaten the viability of HF radar based on the continuous spectra signal system seriously.
在拥挤的高频频段，可用的连续带宽比较窄，基于连续谱信号体制的高频雷达的生存能力受到严重威胁。
In this paper, signal preprocessing for bearing determination of ocean surface radial current mapping by HF ground wave radar based on MUSIC is investigated.
阐述从高频地波雷达海洋回波反演海洋表面流中，使用MUSIC算法提取径向流方位必须的信号预处理。
Results:1. Described the componants of HF and the related structures in anatomic and MRI sections, and the corresponding MRI signal features in details.
结果：1。详细描述标本切片海马结构形态、海马结构毗邻及MRI冠状及矢状断面上对应结构的形态及信号特征。
This paper is mainly on the FSK demodulation algorithms suitable for HF frequency hopping signal interception.
本文主要研究适合短波跳频信号截获的FSK解调算法。
In order to receive omnidirectional low-SNR signal of whole HF band, we present an adaptive omni-direction & narrow-beam receiving antenna array.
为了实现对短波频段全空域低信噪比信号的良好接收，本文提出了一种窄波束全向接收的自适应天线阵。
First, according to the characteristics of HF channels, its influence on signal transmission is analyzed, and the equivalent baseband model of HF channels is provided.
首先，根据短波信道的特点，分析了其对信号传输的影响，给出了等效基带传输模型。
An apparatus for measuring the spatially resolved small-signal gain of CW HF chemical lasers is described.
描述了测量连续波hf化学激光器小信号增益空间分布的装置。
In this paper, the mechanism of the ionosphere contamination from the ionosphere distortion is exposed for the first time by analyzing the process of HF radar signal processing.
该文通过对高频雷达信号处理过程的分析，阐明了电离层扰动对回 波信号污染的机理。
In HF channel modeling, doppler spread effects are usually simulated by filtering white Gaussian noise. The signal correlation in time domain deviates far from the theoretical value.
在短波信道建模中，通常采用对高斯白噪声滤波来仿真多普勒扩展效应，这些模型的时域相关值与理论值相差较大。
In HF channel modeling, doppler spread effects are usually simulated by filtering white Gaussian noise. The signal correlation in time domain deviates far from the theoretical value.
在短波信道建模中，通常采用对高斯白噪声滤波来仿真多普勒扩展效应，这些模型的时域相关值与理论值相差较大。
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