frequency capture 中文意思是什麼
frequency capture
解釋
頻率捕獲-
Research of capture and play based on video frequency
基於視頻圖象的捕獲與播放的研究 -
The synchronization of frequency hopping method referenced the jtrs radio system of usa military, and designed a synchronization method used in our radio include creating the frequency hopping map and the base band frame architecture in frequency hopping mode. the paper also analyzed the synchronization capability on theory. it has been proved correct on theory by showing the false probability, capture probability and the synchronization time
對跳頻圖案的產生和跳頻的幀結構，本文不僅從理論上分析了同步性能，給出了虛警概率和檢測概率，估算了同步的捕獲時間，證明均能滿足系統指標要求，而且通過與合作單位進行的整機聯調和實測證實了該方案的可行性。 -
3. with comprehensive improvement of transponder including structural adjustment to lna ; optimization of ( phase locked loop ) pll filter ; structural adjustment to the transmitter and phase error adjustment to the intermediate frequency demodulation circuit, we have successfully enhanced sensitivity, expanded dynamic range, increased transmitting power and improved the spectrum purity ; decreased capture time for pll ; improved the signal quality after demodulation ; reduced its volume and power consumption. 4
3 、對通信機的全面改進，包括lna結構的調整、鎖相環環路濾波器的優化、發射部分結構的調整以及中頻解調電路的相差調整，提高了系統的接收靈敏度、改善了本振的頻譜純度、減少了鎖相環的鎖定時間、使中頻解調后的信號質量大為提高，同時還減少了體積、節約了系統的功耗。 -
When the frequency of input signal is high enough, we could n ' t capture it by real - time sampling. in this situation, the only choice is equivalent - time sampling. we reconstruct signal with several random sampling series by multi - trigger
當信號的頻率足夠高時，實時采樣技術已經不能滿足要求，唯一的選擇是採用等價采樣技術：通過多次觸發，用多個隨機采樣序列重建信號。 -
On the other hand, inhibitory areas of ftc could be abolished partially or completely during bicuculline application. these results showed that gabaergic inhibitory afferent projections to recorded neurons were activated by random resonance caused by weak noise in cochlea, which provided inhibitory input for sharpening frequency tuning and made neuron more precisely analyze sound signal near its bf. therefore, this experiment presented a possible evidence of cellular level for interpreting why human and animal could extract or capture sound signal of specific frequency from the environment with competing noise
說明山弱噪聲引起的耳蝸隨機共振在_ _仁行傳入過程中可能激活了至所一記錄的jc神經元的gaba能抑制性神經迴路，這種gaba能抑制為銳化神經元頻率調諧提供了一種抑制性輸入，使ic神經元對靠近最佳頻率的頻率分析變得更為細致和精確，由於聲頻率是聲信號的重要參數和信息載體，頻率調諧的銳化意味著對聲頻率分析能力增強，從而為解釋人們為什麼能從充滿噪聲的環境中捕捉或提取與行為學相關的信號提供了一種細胞水平的實驗證據。 -
It is presented that a new method makes use of some data with fixed - sampling - frequency, which can capture the signal frequency real - time and realize the integral period sampling again through the software
提出了一種全新的方法，用采樣率固定不變的采樣數據，通過軟體實時地確定信號的頻率並且實現信號整周期重新采樣。 -
This algorithm can capture and trace the signal with the frequency shift larger than the symbol rate under low e ( subscript b ) / n0 when combining with proper frequency trace algorithm
該演算法結合相應的頻率跟蹤演算法能夠在低信噪比條件下實現多普勒頻移遠大於符號速率的信號捕獲與跟蹤。 -
Aidc. information technology - automatic identification and data capture techniques - harmonized vocabulary - radio frequency identification
信息技術.自動識別和數據捕獲 -
First, variable speed constant frequency wind energy convertion theory is described in this paper, then presents a review on the development of wind turbines control and the main types of generator and static converters used to interface variable speed wind turbines to the electric grid. then discuss main circuit constructure and advantage of direct drive wind energy conversion system and introduce pitch - control method for wind power traction and electric power stability. simply aerodynamic characteristic of the turbine is analysised and permanent magnet synchnonous generator math model is established. to convert the variable frequency electricity into utility grid, back to back four - quadrant pwm - vsi is used and three typies of control strategy is presented to capture the maximum wind energy and transmit energy. then simulation is implemented to test the control strategy. in the following chapter a simple ac - dc - ac converter with a dc - dc boosting chopper is proposed to transmit the wind energy into electricity energy and two control strategy is presented
建立了永磁電機和變流器的數學模型，針對雙pwm變頻器的特點提出了三種控制策略對變流器進行控制，通過變流器交-直-交的變換，將發電機發出的變頻變幅值交流電轉化為可用的恆定頻率的交流電，通過pwm調治能使其輸出功率因數為一，並且該控制系統功率因數為可調，能在特殊情況下同電網交換一定的無功功率，並通過對變流器的控制實現了最大風能俘獲的功能。最後採用matlab / simulink進行了模擬，取得了良好的模擬效果。在風力發電系統中，採用先進的最大功率俘獲演算法，能有效的從風中獲得最大的能量。 -
The method was correlate search and fft carrier detection, which could solve the problem of the capture of the spread spectrum code under the condition of low snr and big frequency offset. we also put forward a method, shift receiving window and correlate with local sequence, which not only could solve the problem of symbol synchronization but also could acquire the statistics of the multipath. then we utilized the results of the channel estimation and the technology of rake receiver to decode the received spread spectrum sequence and acquire rude information
方案中提出了：相關搜索、 fft檢測信號載波的方法，解決了低信噪比、大頻差條件下擴頻碼的同步捕獲難題；滑動相關完成位同步的方法，解決了低信噪比下的同步問題；在時域利用相關進行通道估計，然後利用rake接收技術完成相關解擴的方法，一定程度上解決了多徑衰落影響解擴性能的問題。 -
In this paper, several different multitarget tracking algorithms are also compared, and the relationship between the maximum velocity and the concentration under the special image capture frequency is brought out. a novel tracking strategy of referring to the velocity and direction of the sperm head based on the neighbor matching technology is introduced in our algorithm
論文還分析了不同的多目標跟蹤演算法，給出了在特定采樣頻率條件下能夠跟蹤的目標速度和樣本密度之間應該滿足的條件公式，提出了適于不同條件的多因素綜合的鄰域匹配跟蹤演算法。 -
If the sampling frequency is too low, the computer will not capture these high frequency components and this causes distortion
如果取樣頻率太低，計算機將無法捕捉這些高頻，從而導致失真。 -
As an automatic data - capture technology, radio frequency identification rfid is already finding a wide range of applications in hong kong, including areas such as accesscontrol, automatic payment and animal tagging
射頻識別rfid作為自動數據採集技術，已於香港廣泛應用，范圍包括保安自動付款和動物標識。 -
As an automatic data - capture technology, radio frequency identification ( rfid ) is already finding a wide range of applications in hong kong, including areas such as accesscontrol, automatic payment and animal tagging
射頻識別（ rfid ）作為自動數據採集技術，已於香港廣泛應用，范圍包括保安、自動付款和動物標識。
分享友人