sampling speed 中文意思是什麼

sampling speed 解釋
采樣速度
  • sampling : n. 1. 取樣（品），取標（本）〈指行動或程序〉。2. 樣品，標本。3. 剽竊拼湊歌曲。
  • speed : n 1 快，迅速。2 速率，速度。3 （汽車的）變速器，排擋。4 （膠片，照相紙）感光速度。5 〈古語〉興隆...
  1. On the basis of the research of former graduates, we design the hardware & software of digital boxcar by employing the high - speed ad fpga chip and the usb protocol controller chip, and we realized the high - speed sampling, digital adding, high - speed storage, data transmission and interface circuits of pc successfully

    根據實驗室前幾屆研究生的積累，前人研究方案的基礎上，利用ad晶元、 fpga晶元和usb協議控制晶元重新設計了boxcar的硬體實現電路和相應的檢測軟體。
  2. The architectures of the receiver are rf pass band direct sampling and if pass - band sampling with high - speed analog to digital converter after rf to if conversion. the first kind of architectures is hard to realize because of the requisition of devices is too high

    軟體無線電接收機分為射頻直接帶通采樣和將射頻信號變換到中頻后再進行帶通采樣，前者實現較難，對器件的要求太高，然後進行各種數字處理。
  3. The hardware has two input channels of high - speed analog signal, with the signal amplitude of 0 - 5v, the conversion precision of 12bits, and the maximum sampling rate of 400ksps. this system includes 4 dsps ( adsp 2181 ), which can be arranged as a pipe line processing array. many algorithms can be realized in this system

    系統硬體有兩路模擬數據採集通道，模擬信號輸入范圍為0 ? 5v ，轉換精度為12位，最高采樣率400ksps ；系統包含4片dsp （ adsp2181 ）構成的流水線型的處理陣列，可用於實現各種演算法；系統的控制邏輯由fpga完成。
  4. The sampling rate of the system can reach 3704 sps, and the crank angle is 1. 94 degree per sampling point corresponding to the crank speed of 1200r / min. in the mean time, the position signal of the piston could be collected by photo - electricity switch

    本研究首先設計和實現了摩擦力採集電子電路系統，裝置最大采樣率可達到3704sps ，在曲軸轉速為1200r / min時，對應曲柄轉角1 . 94度采樣點，並且可以採集用來確定活塞位置的光電開關的信號。
  5. The paper initiated electroabsorption modulator replacing the conventional model of sampling optical source and high - speed photonic switching. the novel approach greatly simplified the sampling system and improved the stability and reliability. it has been validated in experiment

    首次提出採用電吸收調制器代替常規的「取樣光脈沖源高速光子開關」的取樣組合，大大簡化取樣系統的結構，提高取樣系統穩定性和可靠性，並進行了實驗驗證。
  6. According to the principle of ultrasound detection, this thesis describes a high - speed sampling system for ultrasound emergent wave and echo wave

    摘要根據定量超聲波檢測原理，闡述了一種針對超聲波發射信號和回波信號的高速採集系統。
  7. This paper discusses in detail some problems about scanning sound intensify mearusing system of the pc machine from perspectives of both hardware and software. it puts emphasis on analyzing and working out problem of multicenter data sampling in phase fifo amortize arbitrarness waveform generator this paper makes a deep discussion on the computer exteral interface technology which is developing in high speed. it analyses scanning sound intensify mearusing system interface technology on the basis of isa pci, and introduce the promising idea about designing mearusing system of scanning sound intensity by using usb interface

    本文針對快速發展的計算機外部介面技術進行了較深入的探討，分析了基於isa總線、 pci局部總線的掃描聲強測試系統介面技術，並提出採用usb介面的聲強數據採集與處理系統的設計思想，同時對windows底層進行了詳盡的分析，採用vtoolsd 、 vc + + 、 ddk編制的掃描聲強測試系統驅動程序，運行在系統核心（ 0級環） ，並能與windows很好的協作運行，既能體現windows的多任務操作系統的特點，又保證了數據可靠、實時的採集。
  8. Abstract : it is expounded the composition and detection method of the diagnostic system of dynamic failure for locomotive running gear. also discussed are the key technologies as ultrasonic resonance demodulation, identification of locomotive type & speed, message sampling of sensors tracing running mechanism and three dimensional diagnosis, as well as the feasibility test

    文摘:闡述了機車走行部動態故障診斷系統的組成及檢測方法，介紹了超聲共振解調、車型車速識別、多個傳感器跟蹤運動機械的信息采樣、三維診斷等關鍵技術及其可行性試驗情況。
  9. Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method

    在本設計中，採用高速的dsp處理器，實現了對故障特徵信息的高速採集與處理;採用大功率的功放晶元與變壓器配合的方法，實現了大電流信號的驅動輸出;採用485總線技術，組建了裝置主機與多探測器之間的主從式通訊網路，實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路，採用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術，實現了控制器與多外設的介面及數字信號的串並轉換;採用了先進的lcd液晶顯示模塊及鍵盤介面晶元，設計了人機信息交互的介面;採用了模塊化的軟體設計方法，開發了裝置主機及探測器的軟體程序。
  10. Quantization error analysis in the high speed and high precision frequency sampling

    高精度頻率采樣中的量化誤差分析
  11. High - speed random sampling of high - speed digitizing storage oscilloscope is discussed in this thesis and which are mainly analysed in the time - domain and the frequency - domain

    本課題研究對象是高速數字存儲示波器的高速隨機取樣變換技術。主要從頻域和時域兩個方面加以分析論述。
  12. An accelerated direct rendering algorith of isosurface for 3d data sets is presented. the problem for calculating the intersections of the ray and the bounding cells pierced by the isosurface can be viewed as the problem of sampling alonga 3d discreteray. it is shown that the algorithm is better on memory requirement and speed than traditional algorithm through its realization on pc

    提出等值面直接顯示演算法，充分利用數據空間的相關性，把體素分為邊界體素和內部體素，並採用體數據邊界表示法，降低了內存.繪制等值面時，將視線與邊界體素的求交運算轉化為對離散視線上點的掃描，避開對整個體數據空間的遍歷，從而減少了計算量。
  13. On the basis of high speed hybrid filter banks adc system, a kind of downsampler model based on bandpass sampling theorem is presented, and analyzed, proved in time and frequency domain, in addition a downsampler is designed according to the model. a class of high effective hybrid filter banks adc system which bases on the downsampler and radio frequency spectrum is proposed, of which digital signal rate falls m times as fast as the former

    作者提出了一種基於帶通采樣定理的抽取器數學模型，對該數學模型進行了時域、頻域的分析證明后，設計了一種基於該數學模型的抽取器，進而根據無線電射頻信號頻譜的特點，提出了高效混合濾波器組adc系統，其數字信號輸出速率比高速混合濾波器組adc系統降低m - 1倍。
  14. The bottleneck of hybrid filter banks adc system is that it cannot sample directly higher radio frequency signal because of lower analog input bandwidth of its adc. in order to remove it, a kind of downsampler model based on nyquist and bandpass sampling theorem is presented, analyzed and proved in time and frequency domain, in addition a downsampler is designed according to the model. on the basis of hybrid filter banks adc system, a class of high speed hybrid filter banks adc system is proposed

    針對混合濾波器組adc系統因其adc模擬輸入帶寬低而不能對頻率較高的射頻模擬信號進行模/數轉換的瓶頸，作者提出了一種基於nyquist采樣定理和帶通采樣定理的抽取器數學模型，對該數學模型進行了時域、頻域的分析證明后，設計了一種基於該數學模型的sha抽取器，進而在混合濾波器組adc系統的基礎上，提出了高速混合濾波器組adc系統。
  15. After that, it discusses the principle of the band - pass technology, illuminating the feasibility of the digital intermediate frequency system based on the sampling speed which is two times lager than the signal band but unsatisfying the nyquist theorem

    隨后討論了帶通采樣技術的原理，說明可以使用不滿足奈奎斯特低通采樣定理但大於信號帶寬兩倍的采樣速率進行中頻數字化，減輕基帶處理負擔。
  16. This distance measuring system may suffice the need of high sampling speed and signal timing processing in echo disposal

    針對毫米波探測系統的特點，測距系統能夠滿足采樣速率快、信號實時處理的要求，可實現對地面目標回波信號進行實時採集和高速處理。
  17. In data sampling circuit, high - speed, complex programmable logic device cpld technique is used. high - speed double - port ram, control sampling time sequence logic, cpu interfaces and bus circuit are implemented in cpld. sampling speed is up to 80mhz, sampling depth is ik - byte, and cpld can fulfill the requirement of the software arithmetic to sampling

    在數據採集電路中採用了高速復雜可編程邏輯器件cpld技術，晶元內設計有高速雙埠ram 、控制采樣時序邏輯及cpu介面、總線等電路，采樣速率高達80mhz ，采樣深度1k位元組，很好地解決了超聲波微位移傳感器軟體演算法對采樣的要求，並可實現在線升級，大大提高了系統的整體性能。
  18. In signal processing, second - generation enhanced intermediate frequency sampling speed and signal processing speed and capacity

    在信號處理方面，第二代提高了中頻采樣速度，並加強了信號處理的速度和能力。
  19. Experimental results showed that the pose measurement system for those cameras can reduce effectively the computational complexity in the space location for stereovision, and that the cameras work well at location accuracy range and sampling speed

    實驗結果表明，基於非線性修正的多線陣像機位姿測量系統簡化了立體視覺空間定位計算的復雜性，在定位精度、定位范圍和采樣速度上均達到了良好效果。
  20. The content of this dissertation include : orthogonal transformation of digital signal ; mathematic model of modulation signals and software - defined radio receiver ; nine feature parameters of the modulation algorithm and threshold of feature parameter ; development procedure of modulation recognition by ccs and the modulation digital signals produced through matlab ; discussion on sampling speed and instantaneous frequency and analysis of experiment " s result

    本文給出了在ccs集成開發環境下調制識別演算法模擬實現的程序設計和利用matlab模擬產生調制信號的方法；分析了調制識別演算法的模擬實驗結果；對采樣速率的選取、非弱信號段判決、瞬時頻率的計算以及演算法數據關聯性的簡化等方面進行了研究。
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