frequency rate 中文意思是什麼

frequency rate 解釋
頻率
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  • rate : n 1 比率，率；速度，進度；程度；（鐘的快慢）差率。2 價格；行市，行情；估價，評價；費，費用，運費...
  1. 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。
  2. The traditional media ' s audience rate and the frequent reading rate is hard to be accurately counted, the propaganda effect is more difficult to weigh, but, the handle advertisement media, through the traffic operation ticket statistics, can calculated the propaganda target and audience frequency data to the concrete number

    傳統媒體的收視率、收聽率、經常閱讀率均很難有準確的統計數據，宣傳效果更難衡量，而拉手廣告媒介則通過交通運營車票的統計，可以將宣傳對象、受眾頻次的數據精確到具體的數字。
  3. The rate at which pulses can be sent and received on copper wires is called frequency.

    脈沖通過銅線送出和接收的速度稱為頻率。
  4. ( 3 ) study the segmentation and recognition of audio frequency signal. audio signal can be divided into segments based on zero - crossing rate. ( 4 ) a audio recognition arithmetic based on mfcc is proposed

    音頻信號的處理作為項目的一部分，根據要求實現了對單一音頻信號的識別，用vc6 . 0來實現。
  5. This paper supplied a new way through variable frequency variable speed ( vfvs ) to change its output flow rate and adding a constant - pressure - drop valve, which could solve the defects in hydraulic pressure servo control system, such as low efficiency in control system, short life, poor ability in resisting pollution, low efficiency in driving system and flow rate, pressure pulse. and this way was proved to be effective

    本論文針對傳統伺服控制系統效率不高、元件壽命短、抗污染能力差、驅動系統效率低、存在流量及壓力脈動等缺陷，利用先進的交流變頻調速技術改變液壓泵轉速的容積調速新方法，提出了在液壓系統中加一個定差減壓閥的新思路，較好地解決了液壓伺服系統存在的上述問題。
  6. Firstly, we study the construction of emotion - speech template database, and analyze the common features such as pitch, energy and formant. after choosing the useful features by using fuzzy entropy effectiveness analysis, we get better performance with the application of neural network. in addition, we propose some more efficient features such as speech rate, pitch slope, mel - frequency cepstral coefficients and its transient parameters, and design a processing model based on vector quantization for cepstral features to fusing different features

    本文首先介紹了情感語音數據庫的建立情況，然後研究了基音頻率、振幅能量和共振峰等目前常用的情感特徵在語音情感識別中的作用，並且通過一種基於模糊熵的特徵有效性分析方法進行了有效特徵的篩選，應用人工神經網路建立了初步的語音情感識別模型，經過實驗發現特徵篩選后系統的識別效果有著一定程度的提高。
  7. At the same time according to the low recognition rate in speech recognition system, the author used the method of fundamental frequency analysis to build male / female recognition model respectively

    同時針對語音識別系統中識別率不高的問題，採用基音頻率分析的方法分別建造男女聲識別模型。
  8. Stressed are the elements of this insurance, the insurability, the common contents and the insurance coverage, and the kind of benefits. probability is used to give the greatness of risk, and mathematical statistics is utilized to calculate the insurance charge. a new method is proposed to settle the insurance charge rate by the claim frequency and claim quota

    著重對建築工程保險的基本要素、可保性、一般性內容和保險項目、承保方式的選擇進行了研究，運用概率論來確定建築工程風險程度，運用數理統計理論給出了建築工程保險費的計算方法，並提出以索賠次度等級釐定保險費率的一種新方法。
  9. After elaborating the principle of an 802. lib key modulation scheme - complementary code keying ( cck ), this paper proposes and realizes a hardware circuit solution of 802. 11b pcmcia wlan interface card, which can reliably offer a maximal 11mbps data rate and freely switch within 14 working channels in 2. 4ghz frequency band

    接著在詳細闡述了802 . 11b協議核心調制技術?互補碼鍵控（ cck ）的原理的基礎上，本文提出並實現了一種峰值傳輸速率為11mbps的802 . 11bpcmcia高速無線網卡的硬體電路設計方案，在2 . 4ghz頻段該網卡可在14個工作通道上自動切換，實現高速突發數據的可靠傳輸。
  10. A 3rd generation converter samples the signal 44, 100 times per second - with a frequency of 44. 1 khz kilohertz. this time resolution exceedingly determines the sound, which we finally perceive : a low resolution sampling or sample rate results in a more muffled sound because quickly oscillating sound waves i. e. high tone are not acquired correctly

    讀取頻率，也就是聲音的采樣頻率，的高低直接影響到我們最後所聽到的聲音，如果采樣頻率不夠高，聽到的聲音會感覺有點糊糊的暗暗的，因為沒有辦法讀取到某些振蕩頻率較高的聲波，也就是高音的部分。
  11. In this thesis, firstly, we put forward a new algorithm of the synchronization of carrier reference phase, that is to use the curve synthesizing with the general digital carrier phase looper to have an estimation on carrier frequency within 10 ms so as to meet the need of meteor burst communication. we have done some simulations to get the performance of carrier frequency estimation using two modulation modes ( 16qam and 4 - qpsk ), and had some test on the carrier phase looper in conditions when using different baud rate transmission and when the baud tuning have windage

    我們對兩種正交調制方式（ 16qam和4 - qpsk ）進行了模擬工作並給出了模擬結果，同時討論了碼元同步定時誤差對鎖相環路工作的影響並根據流星通信中使用變速率傳輸時鎖相環路的載波同步性能進行了測試；然後在基於軟體無線電思想的數字處理平臺（該數字處理平臺實現了中頻數字化）上用dsp軟體完成了載波的相位跟蹤。
  12. The specific research methods are listed : 1. matched filter taking the max ouput snr as the best rule correlates nonstop divided signal and divided echo to detect low snr target signal. then all one dimension divided correlation outs and done fft in portrait to leach interferential signal such as static or low rate mussy meaves, many pathway echo and so on and to take target ' s time difference and doppler frequency that combine parameters that target ' s direction taken from antenna and so on to implement target ' s orientation and tracking

    具體研究方法如下： 1 、採用以輸出信噪比最大為準則的最佳匹配濾波器來對分段的參考和目標信號作相關處理來檢測低信噪比目標信號，然後對一維分段相關輸出組作縱向傅立葉變換來濾除靜態或低速的雜波、多徑回波等干擾信號，並提取目標的時差和多普勒頻率，再結合由天線獲得的目標方向等參數，就可以實現目標的定位和跟蹤。
  13. Sar safety levels with respect to human exposure to radio frequency electromagnetic fields, 3 khz to 300 ghz ; amendment 2 : specific absorption rate limits for the pinna

    處于射頻電磁場3khz至300ghz的人體的安全等級.修改件2 : pinna的特定吸收率
  14. This thesis built the models computing the working frequency over - voltage " operation over - voltage for 220kv fugai transmission line, calculates and analyzes working frequency over - voltage " operation over - voltage using emtp program and provides reasonable protection measures for the transmission line. furthermore, regulations method, traveling wave method and striking distance method are used to study and compare lightning - enduring capabilities of different types of pole in power transmission lines aiming at the fact that the lightning strike switching rate of 220kv fugai line is higher

    本文分別建立了計算220kv復蓋線路的工頻電壓升高及操作過電壓的計算模型，利用emtp程序對220kv復蓋線路工頻電壓升高、投切空線過電壓、投切空變過電壓、單相故障過電壓進行計算分析，並提出合理的防護措施。
  15. Data that focus not on age but on length of service give similar results and confirm that the frequency rate of work accidents decreases with length of service

    事故的次數的多少與人的年齡無直接關系，但與服務的年限的長短有關，事故的頻率隨著服務年限的增長而減少。
  16. The radar which is embedded on platform sidelooking, but the platform will be disturbed by airflow inevitably. so, the radar will have a small sloping angle, thereby, the doppler centroid that is not zero and doppler frequency rate need to be estimated from the raw echo data in order to focus in azimuth commendably

    場景成像的合成孔徑雷達一般是正側視放置，但是載機不可避免的要受到各種擾動影響，雷達會有一定的斜視角，從而導致了多普勒中心頻率不為零，多普勒調頻斜率也隨著雷達斜視角改變。
  17. At the doppler centroid aspect, this paper make use of maximum value method ; energy method and autocorrelation function method to estimate doppler centroid. at the doppler frequency aspect, this paper make use of image offset method ; time - frequency method ; minimum entropy and fractional fourier transformation method to estimate doppler frequency rate

    在多普勒參數估計中，採用了最大值法、能量法和自相關函數法進行多普勒中心頻率估計;採用了圖像偏移法、時頻分析法、最小熵法和分數階傅里葉變換法進行多普勒調頻斜率估計。
  18. This method offers more precise geometry for spaceborne sar system design and simulation. 3. in the analyzing on the radar doppler properties, under the ellipsoid earth model and ellipse orbit model, considering the earth rotation, the radar doppler properties with different orbit eccentricity are compared, and the fact that orbit eccentricity affects doppler frequency rate is found

    在雷達多普勒特性分析中，論文採用橢球地球模型和橢圓軌道模型，結合地球的自轉，通過不同偏心率下雷達多普勒特性的比較，研究了軌道偏心率對合成孔徑雷達系統設計與模擬軟體研究雷達多普勒調頻斜率的影響。
  19. Experienced a construction site accident frequency rate of 0. 68 per 100, 000 manhours in comparison to the hk construction industry rate of 1. 89 per 100, 000 manhours

    2003年非致命意外率為每十萬工時0 . 68宗，遠低於本港建造業每十萬工時1 . 89宗意外的比率
  20. The theory of soplat using frequency rate is discussed in chapter 2. based on this theory, this chapter studies the observed discrete - time signal. the crlb of continuous wave and coherent pulses frequency estimation are also studied

    論文第二章討論了利用頻率變化率的單站無源定位原理，在此基礎上，介紹了單站無源系統中接收信號的模型，並分析基於各模型的頻率估計的cramer - rao下界。
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