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- carrier frequency signaling 载波频率信号
- The modulating signal is a slowly varying signal - as opposed to the rapidly varying carrier frequency. 调制信号是一个缓慢变化的信号作为反对以快变载波频率。
- Carrier frequency offset is one of the key problems in OFDM system. 摘要载波频率偏移是OFDM系统实现的关键问题之一。
- Based on the property of OFDM signal, a new carrier frequency acquisition algorithm is proposed, which employs only one block of identical time-domain training sym-bols. 该文从OFDM信号的特性出发，采用单一训练帧，将OFDM系统的载波频率捕获等效为单载波频差估计。该文提出的算法仅使用一帧辅助数据；
- This paper concerns relative technologies about carrier frequency synchronization and estimation in downlink signal in large doppler frequency shift condition. 本文对大多普勒频移情况中，下行信号载波频率同步估计的相关技术进行了研究。
- An oscillator for generating the carrier frequency of a transmitter. 主控振荡器产生载波频率的振荡器
- carrier frequency signalling 载频信号方式
- A form of frequency modulation in which the carrier frequency is shifted between a mark frequency and a space frequency in response to the impressed intelligence signal ( frequency-shift keying ). 频率调制的一种方式,其中载波频率在标志频率和场频率之间移动,以响应外加的情报(数据)信号。
- Tracking is the part of the baseband signal processing.The carrier phase tracking loop, the carrier frequency tracking loop, and the code tracking loop are the three tracking loops in receiver. 追踪是基频讯号处理的一部分，再接收机中有三个追踪迴路，其分别为载波相位追踪迴路、载波频率追踪迴路及码追踪迴路。
- At a repetition rate nearly equal to the carrier frequency of the reticle system, the jamming source will disturb the target's signal received by the seeker, and make the seeker lose the target. 而重复频率近似等于调制盘系统调制波形载频的光脉冲会干扰导引头接收到的目标信号，使导引头失去目标。
- There are numerous patented technologies which can be piggybacked individually or collectively onto a carrier frequency to elicit all kinds of effects. 在一个载波频率上有着众多的专利技术，它能个别偷偷的或集体的引起所有种类的影响。
- This paper proposes a heter-cycle abutted CP structure and a two-step OFDM carrier frequency calibration algorithm. 摘要设计了一种具有异周期毗邻结构的新型循环前缓，提出了相应的OFDM频偏估计算法。
- The readout principle and test method of high frequency signal of CD are introduced. 介绍了CD光盘的高频(HF)信号的读取原理和测试方法。
- It has previously been shown that PCC substantially reduces the sensitivity of OFDM to carrier frequency offset. PCC能够显著地降低OFDM对载波频偏的敏感性。
- The match strobe gate is presented to improve the measurement precision of low frequency signal. 文中提出使用匹配选通门提高低频信号频率测量精度。
- Current GPS receiver search strategies are based on the sequential search of the C/A code phase and carrier frequency. 摘要当前GPS接收机的搜索策略是基于C/A码相位和载波频率的串行搜索。
- The output of common ultralow frequency signal generator has only a few fixed waveforms which can not be changed. 常用超低频信号发生器的输出只有几种固定的波形,不能更改。
- The topic of this paper comes from the need of pricise carrier frequence measuring of Direct Sequence Spread Spectrum signal. 本论文课题来源于工程中要求对直接序列扩频信号载波频率进行精确测量的客观需求。
- Carrier frequency and modulation scheme are two key issues in the system design of automotive anticollision radar. 工作频段和工作体制是防撞雷达系统设计的两个主要问题。
- High quality REC of video frequency signal and big area communion of video frequency resources are the important parts of Instruction Multimedia Resources. 其中,视频信号的高质量录制、视频资源的大范围共享,是多媒体教学资源建设的重要组成部分,成为教育界所关注的重点。
