跳頻器 的英文怎麼說

中文拼音 [tiàobīnqì]
跳頻器 英文
frequency hopper
  • 跳 : 動詞1 （腿用力彈起） jump; leap; skip; bounce 2 （彈力使物體突然向上移動） spring; leap 3 （一起...
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  1. On the demand of application and according to the soluhons menhoned above, a method of displacement waiting auto - sy ' nchronizing is put forward, which is based on match filters. at the end a complete and speeflc set of hardware circuits and software programs which haplements the scheme, is also presented in the ancle. the synchronization system was tested in the pool and in the shallow wate near m port, the result of the test shows that its performance is satisfactory

    論文著重介紹實現了跳頻通信系統同步的一般方法，並詳細分析和對比跳頻同步系統的捕獲方案，在此基礎上，提出了一個基於匹配濾波器的位移等待式自同步方案，設計、完成並給出了詳細硬體連線電路圖、軟體程序流程圖和部分程序清單，該自同步方法在實驗室水池實驗取得良好的效果，並在廈門港海域進行了現場實驗測試，具有較低的誤碼率和一定的檢測概率，結果令人滿意。
  2. Such tags could emit 128 different signals in parallel, allowing the collection of data about an animal ' s breathing rate, wing - beat frequency and heartbeat ( if it were a species that actually has a beating heart ) in addition to its geographical location

    佩帶器還可以發射128種不同的信號，這樣除了動物地理位置之外，還可以收集其它分門別類的數據，諸如動物的呼吸、翼擺、心跳頻率（針對有心跳頻率的動物）等等。
  3. Chapter 3 discusses the modules used in the fh - mpsk and fh - / 4dqpsk systems. these modules include : duc / ddc ( digital up converter / digital down converter ), nyquist flitter, burst start detection, interpolation module, pll ( phase locked loop ), pll error extraction, initial phase correction and the coding and decoding for tcm

    第三章主要討論了跳頻模式下fh - mpsk和fh - 4dqpsk系統中各個模塊的設計，這些模塊包括：上下變頻器、奈奎斯特濾波器、信號到達檢測、插值模塊、通用環路、各環路誤差提取方法、初始相位校正和tcm編譯碼。
  4. Intermodulation suppression for fh ( frequency hopping ) receiver is designed by selecting the intermediate frequencies and changing group of filters, local oscillation ( lo ) frequency, bandwidth of lo frequency under the condition that receiver configuration, sensitivity, dynamic range, instantaneous bandwidth and precision of frequency measurement are fixed

    摘要針對跳頻接收機的體制和靈敏度、動態范圍、瞬時工作帶寬、測頻精度等設計參數，通過改變預選器組成、本振頻率和本振帶寬，分析接收通道的中頻選取原則，以實現跳頻接收機的互調抑制設計。
  5. The transmit circuit includes convolutional encoding, framing, differential encoding, shaping filter, pn generator, hopping pattern generator, etc. the main part of receive circuit is matched filter

    發送電路包括卷積編碼、成幀、差分、成形濾波、 pn發生器和跳頻圖案發生器等；接收電路的主要部分是匹配濾波器。
  6. Since commercial pll ic came out, phase - locked - loop frequency synthesis has become widely accepted. but when narrow frequency - step is required, the loop bandwidth has to decrease while cannot meet the demand of frequency - hopping speed

    數字鎖相集成器件出現以來，鎖相式頻率合成器得到迅速發展，但是當需要窄頻率步進時，環路帶寬需要降低，致使鎖定時間變長，不能滿足快速跳頻的要求。
  7. The core of a frequency hopping system is the frequency synthesizer

    在跳頻系統中，頻率合成器是核心部件。
  8. The goal of this thesis is to accomplish base - band channel coding / decoding, fh framing / de - framing and fh synchronization, and also to control the modulator and demodulator in the prototype system. all these functions are implemented with a tms320vc5409 dsp

    作為項目的一個重要組成部分，本文採用dsptms320vc5409實現了基帶處理部分的通道編解碼、跳頻意義的組拆幀和跳頻同步、並對調制解調晶元讀寫寄存器進行了配置。
  9. A infrared system with which can detecte the pulse of human. because human body are semitransparent, and the transparence of it change along with the heart beat. the infrared sensor can detecte the change, we may tanslate the signal from sensor into a digital form by a cmos ic. when the signal change into a digital form, another ic can get the rhythm of the heart from the analog ic. this article designed the anologe ic which got the sensor signal into digital form

    本論文完成了一個基於反射型紅外線傳感器的cmos模擬專用集成電路的設計，它構成的紅外系統具有探測心跳頻率的功能。設計根據人體組織的半透明度會隨心臟跳動而變化的特點，由傳感器探測到這一變化，通過專用集成電路將信號放大並利用，獲得心跳頻率。本模擬晶元結合數字電路可計算即時心率或統計心跳總數。
  10. In this article, we will discuss a designing project of a new kind of frequency - hopper, whose feasibility in practice and advantage in performance has been proved through implementing it with dsp

    摘要本文討論了一種新型跳頻器的設計方案，還通過dsp的實現證明了它在實踐上的可行性和在性能上的優越性。
  11. In chapter 5, the complex envelop simulation block diagrams of fh transmitter and receiver are presented at first. then key techniques of simulation system are discussed, including frame processing structure, fh sequence generator, etc. finally, simulation models of fh transmitter, receiver and jammer are presented. the influence of frequency excursion on performance of multi - tone continuous wave jamming is analyzed

    第五章首先設計了跳頻發信機成員和接收機成員的復包絡模擬框圖;其次討論了跳頻模擬系統實現的關鍵技術，包括幀處理結構、跳頻序列發生器等;最後給出了跳頻通信發信機、接收機以及干擾機成員的模擬模型，分析了頻率偏移對多頻連續波干擾性能的影響。
  12. Research and design of pn code sequence fast frequency hopping frequency synthesizer

    偽隨機序列快速跳頻頻率合成器的研製
  13. Vice president cheney has undergone a successful minor surgical procedure. doctors at george washington university hospital replaced the generator and battery in a device that monitors cheney ' s heart rhythms

    副總統切尼的外科小手術很成功.喬治華盛頓大學的醫生更換了檢驗切尼心跳頻率裝置的發電器和電池
  14. In this dissertation, researches on chaotic signal generating, processing and application in communication systems are carried out hie main originality in this paper can be summarized as below : 1. studies on chaos generation. ( 1 ) a new chaos family based on quadratic function is promoted, their lyapunov exponents are calculated

    本文主要內容涉及基礎研究和應用研究，其中包括： 1 ）進行了關于混沌信號發生器的若干研究； 2 ）進行了關于混沌信號處理的若干研究； 3 ）進行了關于混沌信號在保密通信和跳頻擴頻通信中的應用的若干研究。
  15. The approach that dds excites pll is used to realize the more stable and accurate uhf frequency synthesizer in a proper bandwidth in this paper

    本文採用dds激勵pll的方式，研究並設計一種uhf波段高穩定度、小步進跳頻的頻率合成器。
  16. Considering the bad condition and the continuous noise existing in the factory, we carry out suggestion of further development of the fh ( frequency hopping ) algorithm to adapt for the demand of security and reliability of data transmission on the fieldbus. the essay researches the fh core in detail and carries out the improved link state history algorithm

    為了在長時間干擾源的條件下，實現藍牙無線的可靠傳輸，本文對藍牙的跳頻內核各邏輯控制器進行深入的研究，對lsh跳頻演算法提出改進方案，模擬結果證實了lsh跳頻改進方案是有效的。
  17. This thesis presents the implementation of a high - speed frequency hopping system in dds + pll structure. a dsp is used to generate quasi - stochastic sequence and control the output frequency to construct required hopping maps

    用dds pll的結構來實現頻率跳變，採用dsp作為偽碼發生器，控制輸出頻率，得到相應的跳頻圖案。
  18. Under finite precision, ways we always seek is easy to implement. and we encrypt the fh system with chaotic stream cipher. simulation results show that the security properties of fh sequence have been improved and the security of information is guaranteed even the fh patterns are broken

    大量的對比分析試驗表明，該密鑰生成器生成的混沌序列密碼的密碼學特性良好。同時，本文還努力的尋求一種在有限精度條件下混沌加密的可實現方案，並利用混沌序列密碼對跳頻系統進行加密。
  19. First, the overall design of frequency hopping frequency synthesizer ( fhfs ) is given. the characteristics of this approach are discussed and the corresponding key technologies are also briefly introduced. then, the specific frequency properties of dds output signals and their effect on fh signals are carefully analyzed

    論文首先介紹了跳頻頻率合成器的整體設計方案，分析了這種方案的特點，並對其中的關鍵技術進行了簡要的闡述；接著，分析了dds輸出信號的頻譜特性以及這些特性對跳頻信號的影響。
  20. In the design of w band double - balanced mixer, a novel structure using magic - t and two baluns, which all realized by ratrace, is proposed with no crossing of transmission line. rf and lo signals are transmitted to the circuit by waveguide - to - microstrip probe transitions

    在w頻段雙平衡混頻器的設計中，本文提出由混合環構成的魔t與巴倫級連而成的功率混合電路，這種新穎的電路結構使整個電路單平面化，避免了任何跳線。
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