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- Meanwhile, synchronization is also the difficulty of the development of FH system, which needs supplicated design especially in the fast frequency hopping(FFH). 同时跳频同步也是跳频通信系统开发的难点,特别在高跳速工作时实现同步捕获和跟踪需要精心设计方案。
- Fast frequency hopping avoids interference. 快速跳频避免干扰。
- A novel adaptive line enhancer(ALE) with high frequency resolution was presented,which suitable for underwater acoustic communication with MFSK or frequency hopping(FH) modulation. 根据水声MFSK或跳频通信中频率估计特点,提出了一种基于自适应线谱增强器(ALE)理论的实用高分辨频率估计新方法。
- Based on Software Defined Radio (SDR) technology, the architecture uses a Direct Digital frequency Synthesizer (DDS) to implement demodulation and modulation of Frequency Hopping (FH) signal. 实验台的构成遵循了软件定义无线电思想，采用了数字直接频率合成器来实现跳频信号的调制和解调。
- interception of frequency hopping (FH) signal 跳频信号截获
- frequency hopping (FH) communication 跳频通信
- detection of frequency hopping (FH) signal 跳频信号检测
- frequency hopping ( FH ) communication 跳频通信
- frequency hopping (FH) synchronization 跳频同步
- frequency hopping(FH) synchronization 跳频同步
- Spread spectrum has two distinct flavors: direct sequence and frequency hopping. 该技术有两个明显的变型：直接顺序与跳频。
- Frequency agile radar synthesis detection unit works in frequency hopping state in RF band. 频率捷变雷达综合测试仪工作在射频段捷变状态。
- Includes Advanced Frequency Hopping technology to better co-exist with WiFi networks. 包含高级频率跳跃技术,可以与WiFi网络更好地并存。
- An acquisition method of frequency hopping signal in a TDMA system is presented in this paper. 本文提出一种时分多址跳频信号的捕获方法。
- Fast frequency hopping avoids interference Adaptive output power minimizes interference Short data packets maximize capacity during interference. 快速跳频避免干扰可变的电源输出使干扰减小到最小采用短数据包传输增强抗干扰能力。
- The performance of Turbo coded optical fast frequency hopping CDMA network(FFH OCDMA) using binary PPM modulation(BPPM) was analyzed. 在不考虑噪声和仅考虑散粒噪声两种情况下 ;分析了 Turbo码对二进制脉冲位置调制( BPPM)的快跳频光码分多址 ( FFH OCDMA)系统性能的影响 ;并对该系统进行了数值模拟 .
- The main work of this paper is realizing a self-adaptation frequency hopping station adapting to new military requisition. 本文的工作就是在软件无线电的架构下实现一种适应现代军事新要求的自适应跳频电台。
- A new chaotic spread spectrum communication system FFH-FMDCSK is presented, which is based on FMDCSK and fast frequency hopping techniques. 本文提出一种基于差分混沌频率调制(FMDCSK)的快速跳频扩谱通信系统(简称FFH-FMDCSK)。
- The paper deals with how to achieve Frequency-synthesis Technology of Frequency Hopping Communication System based on FPGA. 摘要文章探讨了一种基于FPGA的跳频通信系统频率合成技术实现方案。
