英汉例句

• based on ad9954, a highly integrated frequency synthesizer, the operation and application theory of ad9954 in frequency hopping system are introduced.

  在研究高集成度频率合成器ad9954的基础上，给出了ad9954在跳频系统中的应用方案。

• the hf fast adaptive frequency hopping communication is a new developing direction in the field of military anti-jamming communication fov tactics application.

  短波快速自适应跳频通信系统是军事通信领域战术抗干扰通信新的发展方向。

• the paper introduces the composition and the operation mode of frequency hopping(fh)communication system and the design requirement of frequency hopping synthesizer.

  介绍了跳频通信系统的基本组成、工作方式以及跳频通信系统中跳频综合器的设计要求。

• frequency hopping technology has the strong anti jamming ability in the short distance communication field.

  跳频技术在短距离通信领域内具有很强的抗干扰能力。

• through the operation of confusion and slot number mapping, a frequency hopping sequence can be produced with fine uniformity and less-than-512 arbitrary slot number.

  该方法通过混淆运算、频隙映射的方式产生出均匀性好、可用频隙数小于512的任意频隙跳频序列。

• it is crucial to study the features of the frequency hopping signals in both time and frequency domain in order to detect and trace the fh signals.

  对跳频信号的时频域进行分析是研究跳频通信，实现识别、跟蹤跳频信号的重要基础。

• families of frequency hopping sequences are used to specify which frequency will be used for transmission at any given time, their properties play important roles in fhma systems.

  跳频序列用于控制载波频率随时间的变化规律，其性能对跳频系统的性能有重大影响。

• finally, bluetooth technology solutions implement adaptive frequency hopping to ensure, which ensures we are a good neighbor technology, and we have done this for years.

  最后，蓝牙技术方案实现了适应跳频（adaptivefrequency hopping ）技术以确保在无线连接技术的世界中，我们是一个好邻居，并且我们已经为此而工作了数个年头。

• at last, we taking the adf4193 as an example explain the realization method of fast frequency hopping synthesizers in details, and the test results is given out.

  最后详细说明了实现快速跳频的原理，并以adf4193芯片为例作，对环路带宽的设计做了说明，并给出了测试结果。

• frequency hopping has the advantage of anti-jamming and the flexible of networks, it is important applications of military communication, mobile communication, modern radar and sonar.

  跳频技术具有很强的抗干扰能力和组网灵活等优点，在军事无线通信、民用移动通信、卫星通信、现代雷达和声纳等电子系统中有重要应用。

• this paper will discuss a new way to speed frequency hopping of frequency synthesizer. this way will assure that loop circult is locked in a very short time.

  本文介绍一种加快频率合成器跳频速度的新方法，该方法能确保环路的初始频差在快捕带以内，使环路迅速捕获锁定。

• 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。

• the final results of experiment prove that the frequency hopping pattern based on this function is good in uniformity, so the system has high complexity and strong anti-attack features.

  最后通过实例说明了由该函数产生的跳频图案具有良好的均匀性，从而系统具有较强的隐蔽性和抗破译性。

• the frequency hopping spread spectrum systems in the generator of jamming signal by programming is introduced.

  文中介绍了扩频跳频技术在干扰信号产生中的应用。

• this paper has introduced the structure and work mode of dds chip ad9854. and this chip's applications in direct sequence spread spectrum and frequency hopping has been researched into.

  介绍了ad9854的结构及工作模式，并对ad9854芯片在扩频通信的直接序列扩频工作方式和跳变频率工作方式中的应用进行了研究。

• to analyze and detect the feature of frequency hopping signal exactly is a crucial prerequisite to carrying out disturbance to follow the track of signal.

  小波变换是信号的时间-频率分析方法，它具有多辨分析的特点，它能有效地检测和识别跳频信号，在跳频通信中有极其重要的作用。

• when networking communication with frequency hopping technology, there exists many problems caused by the collision conflict, the longer network time, address conflicting, and timeliness reduces.

  使用跳频技术进行网络通信时，碰撞沖突会导致组网时间过长、地址容易沖突、实时性降低等问题。

• the main performance characteristics of ad9858 chip and its application to frequency synthesizer with fast frequency hopping is mainly introduced in detail.

  文中详细阐述了ad9858芯片的主要性能及其在快速捷变频频率合成器设计中的应用方法。

• abstract this paper introduces the principle of frequency hopping communication system .

  摘要这篇论文主要介绍了快跳频通信系统的工作原理。

• it is a feasible scheme that is used to the terrain-following radar of incoherent? frequency hopping in low sky navigation pod.

  将非相参捷变频体制的地形跟随雷达用于低空导航吊舱，无疑是可行的方案。

• he headed a group of engineers, whose duty was to develop frequency synthesizers and local generators for frequency hopping spread spectrum and satellite systems.

  他还带领一个工程师团队，负责研究用于跳频扩频以及卫星系统的频率合成器和局部发生器。

• after the theory of correlation interferometer and how to improve the precision of frequency hopping direction finding are introduced, of which the simulation and software has been completed.

  针对跳频信号的测向，简述了相关干涉仪原理以及影响系统测向精度的因素，进行了计算机仿真并完成了软件设计。