hf

The design of HF signal generator and its application in water processing system

高频信号发生器设计及在水处理系统中的应用

A New Compensation Method for HF Ground Wave Radar Receiving System

一种新的高频地波雷达接收系统补偿方案

Marketing Strategy Research on Electric Power Secondary Equipment of HF Corporation

HF公司电力二次设备营销战略研究

Design and Analysis of Simulation Algorithm of the 3G HF Network Physical Layer

3G短波网络物理层仿真算法设计与分析

Study on the Cylindrical Continuous Wave HF Chemical High Energy Lasers

环柱型高能连续波HF化学激光器研究

Research of Channel Model in Wideband HF Communication System

短波宽带通信系统中信道模型的研究

A New Modulation System for HF Data Transmission

一种新的短波数传调制体制

The Research of Digital Communication Technology Over HF

中短波通信数字化技术的研究

Frequency Management of the Third Generation HF Communication Network

第三代短波通信网的频率管理

Advanced Techniques for Modern HF Communication and Its Development

现代短波通信的新技术与发展

A new method for the measurement of the broadband HF antenna gain

短波宽带天线增益测量新方法

Design of HF High Power Source Modulated by Narrow Pulse

窄脉冲调制的高频大功率源设计

Hardware Implementation of Radio Monitoring Module for HF Ground Wave Radar

高频地波雷达频谱监测模块的硬件实现

Effect of HF Treatment on Structure and Acidity of β Zeolite

HF处理对β沸石结构和酸性的影响

Measuring and Theoretical Analysis of HF RCS on the Ocean Surface

高频段目标RCS的测试及理论分析

Development of 3D Display System for HF Radar

高频雷达三维显示系统的开发

A Study and Implementation of HF Serial Modem System

短波串行调制解调器的系统研究及实现

Performance Analysis of HF Serial Data Transmission Systems for CW Interference Rejection

HF串行数据传输系统抑制CW干扰的性能分析

However , HF has no significant change on the mortality rate of patients .

HF对患者的死亡率无明显改变作用。

New method to pick up sea echo signal in HF radars

高频雷达中提取海洋回波信号的新方法

A Method with Software for Carrier Synchronization of HF Data Transmission and Its Realization

一种短波数传载波同步的软件实现方法

Ocean Surface Current Detection by HF Ground Wave Radar with Portable Antenna System

采用便携式天线的近海海洋表面流探测

Estimation of Target Altitude Based on AR Model in HF Surface Wave Radar

高频地波雷达目标高度估计的AR模型方法

A Quasi Real - Time Prediction Technique for HF Communications

短波通信中的准实时频率预报技术

Optimized HF Radar Work Frequency On-line Real-time Optimum selection of mixing frequency

高频雷达工作频率在线实时优化选择

Communications between Satellite Communication Network and HF / UHF Communication Networks

卫星通信网络和短波/超短波通信网络的互连

Development of Nuclear Power Provide Opportunity for Zr & Hf Industry of Our Country

核电发展为我国锆铪产业带来发展机遇

Study on Static Electricity High-voltage Power Supply for HF Inverter

高频逆变型静电高压电源的研究

HF radar can measure the sea surface parameters .

高频雷达能探测海面风、浪、流等动力学要素。

Design of a Novel Automatic Antenna Tuning Coupler in HF Communication

一种新的短波自适应天线调谐器的设计