片语

spread-spectrum system扩频通信系统

spread-spectrum sequence扩频序列

spread-spectrum communications扩展频谱通信，[通信] 扩频通信

spread-spectrum sequences扩频序列

Spread-spectrum Techniques扩频技术

spread clutter spectrum扩展谱杂波

Spread-spectrum function扩频函数

Spread sequence spectrum system扩频体制

Spread-Spectrum Transponder扩频应答机

英汉例句

• by the power line communication with spread spectrum technology, the system implements 「wireless」 modern city traffic control, it is portable, low power consumption, stable and flexible.

  该系统采用扩频电力线载波通信技术实现了现代交通灯的「无绳」控制，具有体积小、功耗低、性能稳定、配置灵活的特点。

• in this paper acquisition and code tracing technology for spread spectrum communication systems is analysed.

  本文讨论扩展频谱通信系统中有关相位的捕获与跟蹤技术问题。

• the spread spectrum communication with an aperiodic pn code and under strong man-made jammers has an important significance in military communications.

  强人为干扰环境下的非周期扩频码的扩频通信在军事上具有重要的意义。

• direct sequence spread spectrum communications is one of the most typical spread spectrum modes.

  其中直接序列扩频通信是目前使用最典型的扩频工作方式。

• the performance of rejecting finite-band interference in pn qpsk spread spectrum systems is analysed.

  本文分析了在扩展频谱系统中采用自适应滤波器抑制有限带宽干扰的性能。

• it is a true blind detection algorithm in that it needs no knowledge of channel fading information as well as time domain and frequency domain spread spectrum codes.

  该算法无需时域扩频码、频域扩频码和信道衰落信息，是一种真正意义上的盲的检测算法。

• an intelligent lighting system for railway goods yard based on spread spectrum power line carrier communication technique is proposed.

  用扩频电力线载波通信技术设计了铁路站场智能化照明系统。

• spread spectrum communication became one of the communication ways with wide developing prospect, and has being applied to military communication and civil communication extensively.

  扩展频谱通信是具有广阔发展前景的通信方式之一，并广泛应用于军事通信和民用通信中。

• it mainly contains the digital modulate system, the ss communication theory and the direct sequence spread spectrum (dsss) system.

  主要是数字调制系统、扩展频谱通信原理和直接序列扩频系统等内容。

• direct p code acquisition is implemented in gps receiver in order to achieve higher spread spectrum gain, the better anti-deception and anti-spoofing.

  为了保证扩频信号具有更高的扩频增益、更强的抗模仿和抗欺骗能力，必须实现p码的直接捕获。

• there are several difficult problems in the research of spread spectrum fh/ds system.

  在研制扩展频谱fh/ds系统时，会遇到一些很困难的问题。

• among the use of various technologies in wll, the use of spread spectrum is increasing due to its high data rate, no license in certain condition, etc.

  在无线本地环路的各种技术手段中，扩频技术以其高数据速率和在一定条件下无需频率许可证等优点，在数据传输中得到越来越广泛的应用。

• in many portable instruments, the noise and emi of its switch power supply must be solved, the preferable method is that emi power is reduced with spread spectrum frequency technique.

  在许多便携式设备中，其开关电源的噪声和电磁干扰（emi）是亟待解决的问题，比较好的办法是利用扩频技术来减少emi信号的功率成分。

• spread spectrum communication is the most efficient mode in the strong noise environment such as the coal mine.

  扩频通信是矿井等强噪声环境中最有效的通信方式。

• this paper introduces the principle of spread spectrum communication, stresses the application of spread spectrum technique, and summarily introduces the broadband access technology of power line .

  本文介绍了扩频通信的基本原理，重点论述扩频通信技术在家庭测控网络中的应用，同时介绍了电力线宽带接入技术。

• there are two main alternatives, direct sequence spread spectrum and frequency hopping spread spectrum.

  主要有两种选择，直接序列扩频和跳频扩频。

• methods and systems for time synchronizing a receiver to a spread spectrum signal are described.

  本发明描述了接收机与扩频信号进行时间同步的方法和系统。

• in order to supply the actual bpsk ds-ss signal to verify the algorithms, this dissertation present a design method of spread spectrum signal generator with adjustable muti-parameter in detail.

  为了给验证算法提供现实的bpsk调制的直接序列扩频信号，本文详细介绍了一种多参数可调的扩频信号源的设计方案。

• through the analysis of the spread spectrum and power line carrier spectrum, the authors design a set of remote reading system.

  通过对扩频通信和电力线载波通信特点的分析，设计实现了一套远程抄表系统。

• in order to solve the problem of direct sequence spread spectrum signals check and recognition, a blind estimate algorithm is proposed, it based on cyclic spectrum theory and matrix transform.

  为了解决正确检测和识别直扩信号的问题，提出一种基于循环谱理论和矩阵变换法的盲估计算法。

• the paper finally gives an example of spread spectrum technology in data transfer in shanghai.

  最后举例说明扩频技术在数据传输中的应用。

• this paper first deals with the fundamental principle of spread spectrum technique, and shows why it has high performance of anti-interference.

  本文首先论述扩谱的基本原理，说明扩谱为什么有高的抗干扰性能；

• first, the basic principles of power line communication and spread spectrum are introduced.

  论文首先介绍了电力线载波通信和扩频技术的基本原理。

• approximation to the error probability is given and compared that of the direct sequence spread spectrum communication system with the m array orthogonal modulation scheme.

  并且同m进制正交码扩频通信系统的差错性能进行了比较。

• pseudo-random sequence, as a code, has broad applications in spread spectrum communication, stream cipher, channel coding.

  伪随机序列在扩频通信、流密码、信道编码等领域有着十分广泛的应用。