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- Study on Code Acquisition in Direct Spread Spectrum 直接扩频码捕获技术的研究
- direct spread spectrum 直序扩频
- It uses spread spectrum technology. 它使用扩频技术。
- Wireless Spread Spectrum Communication and Its. 无线扩频通信及其应用。
- Study of Spread Spectrum Receiver. 扩频接收机的研究。
- 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。
- The principle of direct spread sequence spectrum(DSSS) is discussed to show character of antidisturbance,and the receiver model and dispatcher model of DSSS is given. 详细阐述了直接序列扩频技术的原理及其抗干扰特性,并给出该通信模式接收机和发送机的模型。
- The principle of direct spread sequence spectrum (DSSS) is discussed to show character of antidisturbance, and the receiver model and dispatcher model of DSSS is given. 详细阐述了直接序列扩频技术的原理及其抗干扰特性,并给出该通信模式接收机和发送机的模型。
- A better method for direct sequence spread spectrum(DSSS) receiver to decrease the acquisition time is proposed. 提出一种减小直接序列扩频(DSSS)接收机信号捕获时间的改进方法。
- This paper introduces GMSK into Direct Sequence Spread Spectrum(DSSS) communication system in order to obtain good performance of power spectrum. 本文将GMSK调制引入到直接序列扩频通信系统中,以期获得更好的功率谱利用率。
- Direct Sequence Spread Spectrum(DSSS)method is a major kind of anti-jamming technique which has been used extensively in communication fields. 直扩技术是一种在通信领域获得广泛应用的主要通信抗干扰技术。
- 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。
- Also,802.11 maintained compatibility with the three most popular radio transmission types: direct sequence spread spectrum,frequency-hopping spread spectrum,and infrared. 802.;11也保持了与三种最流行的无线电传输方式(直接顺序扩频、跳频扩频和红外线)的兼容性。
- The Future of Spread Spectrum Communications in the Datong Coal Mine Group Co. 扩频通信技术在大同煤矿的应用前景。
- An efficient method that can blindly estimate and synchronize to PN sequence of direct sequence spread spectrum (DS-SS) signal quickly is presented in a non-cooperative context. 摘要在非协作信息侦测情况下,提出了一种实用的直接序列扩频(DS-SS)通信信号PN码序列的快速盲估计方法。
- Related problems, such as quick capture of direct spread sequence, MSK coherent demodulation, are also involved. 讨论了存在强干扰条件下MSK中频数字接收机的频域窄带干扰抑制、伪码快速捕获、MSK相干解调等实现方法。
- In direct sequence spread spectrum communication system, enemy is assumed to detect whole PN sequence chip by chip and a modulated retransmitted interference is created. 在直接序列扩频通信系统中,假设敌方能够逐个比特地检测到整个PN序列,并产生一个调制的转发干扰。
- Rib infection is often secondary to trauma or from the direct spread of infection from the underlying lung or pleura. 摘要肋骨发炎的病灶往往来自外界创伤或因肋骨下肺实质感染或肋膜腔感染而次发性发炎。
- Frequency-hopping spread spectrum (FHSS) was developed by the military for secure communications. 跳频扩频(FHSS)是由军方为保密通信开发的。
- Spread spectrum technology competes in the unregulated portion of the radio electromagnetic spectrum. 扩频技术是在无线电电磁频谱中无条例管制的部分中竞争。