跳變頻率 的英文怎麼說

中文拼音 [tiàobiànbīnlǜ]
跳變頻率 英文
jump frequency
  • 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...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 頻率 : frequency; rate
  1. On the base of researching the theory of the scheme and analyzing the signal feature, it is obtained that the existence manners and character of distance information in the differential frequency signal. at the same time, a new conclusion is gained that the technology of frequency agility can decrease the constant error of system. it is also to say that frequency agility and frequency modulation fixed - distance fuze has the similar feature to random period frequency modulation fixed - distance fuze. according to the theory of address coding in the hopping - frequency communication, the paper presents the principle of selecting the frequency agility sequence which fit to the radio fuze and constructs the frequency agility sequence family based on the rs codes

    在深入研究方案原理和分析信號特徵的基礎上，獲得了該體制引信差頻信號中，距離信息的存在形式和特點，得出了頻率捷變技術的引入降低了系統定距固定誤差這一新的結論，即頻率捷變調頻定距引信在定距性能上具有類似隨機周期調頻定距的特徵。本文引入跳頻通信地址編碼理論，結合無線電引信的具體特徵，提出了適用於無線電引信的頻率捷變序列的選擇原則，並構造了基於rs碼的寬間隔頻率捷變序列族。
  2. Experimental results show that the bistable of tuned substrate self - bias was determined by discharge gas pressure, discharge power and tuning circuit parameters etc. the bistable exists is because of there is capacitive coupling in icp system and sheath capacitance is nonlinear

    實驗結果表明這種跳變回滯現象與等離子體的放電氣壓、射頻功率以及調諧外電路的參數等多種因素密切相聯系。而產生跳變回滯現象的原因是icp中存在容性耦合以及鞘層電容具有非線性特性。
  3. Even under the condition that the filling pressure was up to 1. 5mpa, the onset temperature was only 237 ?. with the filling nitrogen of 0. 9 mpa, the maximal pressure ratio reaches 1. 21 and the operation frequency is 25 hz. the ratio of the harmonic wave of the engine was very little and the frequency jumping was not found in present experiments

    在充氣壓力為0 . 9mpa的條件下，該熱聲發動機最大壓比可達1 . 21 ，遠高於駐波型熱聲發動機，實驗結果和理論分析均表明系統的工作頻率為25hz左右，實驗裝置的諧波比例非常小，且也沒發現頻率跳變等現象。
  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 fh signal is a kind of non - stationary signal that the frequency changes non - linearly along with the time. however, the time - frequency analysis technique is the powerful tool to deal with these signals

    跳頻信號是一種頻率隨時間非線性變化的非平穩信號，而時-頻分析是分析這類信號的有力工具。
  6. The new technology of non - contact life - parameter detection is relative to that of the normal contact one, which uses microwave beams to illuminate the human subject, whose reflected wave will be modulated by the surface movement resulting from the physical activity. by this way, some parameters of the reflected wave, such as frequency and phase will be changed. if these changes can be detected, the life parameters such as respiration rate and heartbeat rate will be extracted from those changes

    非接觸生命參數檢測是相對于常規的接觸式檢測而言的一種新技術，它利用微波束照射人體，其回波信號被人體生命活動引起的體表微動所調制，使得回波信號的某些參數（如頻率、相位）發生改變，檢測到這些變化就能從中提取出人體的生命參數（如呼吸或心跳） 。
  7. 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。
  8. The project fulfills two of very important funcitons in a fh communication system - the generation of pn code and the synthesizing of hopping frequencies, and unites them together efficiently

    該方案完成了跳頻通信系統中極為重要的兩個功能：偽隨機碼的產生和跳變頻率的合成，並將它們有機地結合在一起。
  9. It is found that the dominant microwave frequency is approximately unchanged at around 3. 5ghz or at around 4. 8ghz with the cathode - anode gap greater or less than 1. 3cm in our model, respectively

    當陰陽極間距在某一范圍內變化時，微波頻率基本不變，但隨著陰陽極間距變化到另一范圍，微波頻率會發生跳變。
  10. The main work of the system can be divided into four main parts as the following : ( 1 ) 10. 5ghz bandpass filter the main contradiction of filter is caused by its function of dividing frequencies. in order to properly divide frequencies, not only need passband ’ s attenuation to be as small as possible and stopbands ’ as big as possible, but also need a sharp and quick change between the attenuation of passband and stopband, thus to make their diversity obvious

    這四個功能模塊分別是: （一） 10 . 5ghz帶通濾波器濾波器的主要矛盾是由它分隔頻率的功能決定的，為了使分隔理想，一方面要求通帶的衰減盡可能小，阻帶衰減盡可能大，亦即通帶和阻帶的衰減差值要盡量大;另一方面要求通帶和阻帶之間衰減的變化應盡可能快，最好是陡峭的跳變，使阻帶和通帶的分隔十分明顯。
  11. 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。
  12. ( 3 ) the frequency may transit from the second harmonic oscillating frequency to the third one when the hot temperature is higher than the specific temperature and the pressure is higher than the specific pressure

    在實驗中發現，在一定的加熱溫度和工作壓力下，系統的自激振蕩的頻率從第二諧振頻率跳變到第三諧振頻率。
  13. It will be affect the range processing that the frequency agile of carrier in frequency agile signal arouse the variety of doppler frequency, so the compensate of velocity door is obligatory

    跳頻信號中載頻的跳變會引起多普勒頻率的變化，這對距離的處理產生影響，必須進行速度門的處理。
  14. 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。
  15. In this paper, low power flip - flops designs by the reduction of the load of clock or the data path ; by the reduction of clock swing ; by the reduction of clock frequency and by the reduction of those idle transitions in cmos circuits with clock gating are discussed

    與此相對應的，在本論文中，分別對將少時鐘負載或數據通路的負載的觸發器設計；減小時鐘信號幅度的觸發器設計；降低時鐘頻率的雙邊沿觸發器設計以及應用門控技術來減少觸發器無效跳變設計的觸發器結構進行了討論。
  16. Blood samples will be taken and the levels of nutrients in these samples correlated with prisoners ' “ impulsivity ” and the variability of their heart rates

    血樣採集后，在這些樣品中營養物的水平和囚犯的沖動以及心跳變化的頻率將會聯系起來。
  17. Frequency ’ s switching time, which directly affects the hopping speed of interferential system as well as radar ’ s frequency agility, is being paid more and more attention. this paper mainly analyzed the frequency synthesizer ’ s agile character

    其中，捷變時間這一指標，由於直接影響到跳頻干擾和抗干擾系統的跳速，以及雷達頻率捷變特性，越來越受到人們的關注。
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