采樣譜 的英文怎麼說
中文拼音 [cǎiyàngpǔ]
采樣譜
英文
sample spectrum-
Workplace air. determination of chlorobenzene. charcoal diffusive sampler, solvent desorption and gas chromatographic method
作業場所空氣中氯苯的擴散法采樣溶劑解吸氣相色譜測定方法We also researched the frequency structure of ddc and interchanged the filter multiphase heft and taking out - operation using the theory of equivalent counterchange in multisampling system
從理論上研究了數字下變頻的頻譜結構，利用多采樣率系統中結構的等效變換原理，將濾波器多相分量與抽取操作進行互換。The delay chip, whose delay precision can be 10ps, wide band sample - hold amplifier ( sha ), and high speed and precise analog / digital conversion ( adc ) are used in the system
能夠對5mhz以下的信號進行隨機采樣、波形顯示、頻譜分析，還能夠對採集的波形數據進行存儲、共享。Omni sampler, the attenuated total reflection accessory of the fourier transform infrared spectrometer, was used to analyze the infrared spectrum of chloride butyl rubber and brominized butyl rubber bottle closures used as medical and pharmaceutical package
摘要採用傅里葉變換紅外光譜儀的衰減全反射附件omni采樣器，對醫藥包裝用氯化丁基橡膠和溴化丁基像膠瓶塞樣品進行了紅外光譜分析。Because hrv signal is unevenly sampled, direct spectrum estimation will cause wrong result. resample on hrv signal is necessary. in this chapter after comparing different evenly sampling methods, the best way - cubic spline interpolation is adopted in spectrum estimation
由於心率變異信號是一種不等間隔采樣信號，不能直接採用傅立葉變換的方法進行頻譜分析，因此將心率變異信號等間隔化是必要的。In this thesis, summarized the basic theories of fourier transformation and the fast fourier transformation that are generally adopted to detect and analyze the electric power harmonic in the electric power supply system. at the same time, summarized the even sample principle, the phenomenon of frequency mix, the window functions and the frequency leaking as so on, those are closely - related to sample from figure signal
簡要闡述了電力系統諧波檢測分析所普遍採用的傅利葉變換和快速傅利葉變換的基本理論以及與數字信號采樣密切相關的均勻抽樣定理、頻譜混疊現象、窗函數和頻譜泄漏等的基本理論。Summarized no - line loads and the present situations of the electric power harmonic pollution in the guangyuan district ' s electric power supply system ; explained the theories of fourier transformation and the fast fourier transformation those are widely adopted by majority scholars to examine and analyze the electric power harmonic in the electric power supply system. summarized the principle of even sample, the frequency mix phenomenon, the window functions and the frequency leaking as so on, those are closely - related to the figure signal
簡要闡述了電力系統諧波檢測分析所普遍採用的傅利葉變換和快速傅利葉變換的基本理論，簡要闡明了與數字信號采樣密切相關的均勻抽樣定理、頻譜混疊現象、窗函數和頻譜泄漏等的基本理論，同時闡述了電力系統的諧波檢測與分析的相關理論基礎知識。Because massive harmonic interference in the electrical network, it causes signal - sampling to include the very big harmonic in the measurement system, for eliminating measurement result influence by harmonic, the paper has an in - depth study of fourier transformation harmonics analysis measurement principle, analysis the forming reasons of frequency spectrum leakage and railing effect during measurement, achieves phase locked loop and frequency multiplier technique to realize integer - period synchronous sampling and eliminate impact of frequency spectrum leakage and railing effect in the result of measurement, and investigates in depth theory on phase locked loop and frequency multiplier technique, gives the method of realizing phase locked loop and frequency multiplier technique
由於電網中存在大量的諧波干擾，導致測量系統中取樣信號也含有很大的諧波，為了消除諧波對測量結果的影響，論文深入研究了傅立葉變換諧波分析法的測量原理，分析了測量中頻譜泄漏和柵欄效應形成的原因，提出了採用鎖相環倍頻技術實現信號的整周期同步采樣，消除頻譜泄漏和柵欄效應對測量結果的影響，並對鎖相環倍頻技術的理論進行了深入研究，給出鎖相環倍頻技術的實現方法。Under the appropriate conditions of sampling equipment of gas chromatographic headspace analysis, determine a suitable salt and a suitable extracting solvent by the orthogonal design method, then determine the fitting feed composition of ethanol - water mixture, the fitting distribution between extracting solvent and mixture, and the fitting salt concentration by the uniform design method
在對建立的頂空氣相色譜采樣裝置的操作條件進行優化之後，先用正交試驗設計法確定非連續性因素鹽和萃取劑及其在備選水平中的適宜水平，再用均勻試驗設計確定連續性因素乙醇的進料濃度、萃取劑配比和加鹽量及其備選水平中適宜的水平范圍。Both of algorithms adopt asynchronous sampling, which can save hardware expenses and make the best of the advantages of software. the algorithms, as well as the factors that impacts the measuring accuracy, are analyzed and tested by the simulations on labview platform ; at the same time, the feasibility of the algorithms on labview platform is verified
給出了基於頻譜校正的電氣信號測量新演算法與基於fft分析的閃變計算方法，這兩種測量演算法均是建立在非同步采樣的基礎上，節約了硬體開銷，可以最大限度的發揮軟體的優勢。Nearly all modern process chromatographs can be equipped with facilities for multistream analysis.
幾乎所有的現代工業色譜儀都配有多流路采樣系統。The paper reconstructs frequency spectrum and reconstructing signal of a continuous signal based on matlab, presents the error of reconstructing signal, and makes an analysis of the influence from sampling period on the superposition of frequency spectrum and precision of sampling signal reconstruction
摘要基於matlab再現了連續信號的采樣頻譜和重構的時域信號，給出了信號重構的誤差，並分析了采樣周期對采樣頻譜疊加和信號重構精度的影響。Influence of the sampling method of signal with uniform random fluctuation frequency on spectrum analysis
頻率均勻隨機波動信號采樣方式對譜分析的影響This dissertation is focused on the study of adaptive digital beam forming ( dbf ), two - dim spectrum estimation and the determination of the highness of the object. main work include : 1 a method of adaptive dbf in received antenna array
本文圍繞著自適應接收波束形成、時-空二維譜估計和對目標高度判定等方面進行研究，主要研究工作包括以下幾個方面： 1討論了在接收陣列天線中，自適應數字波束形成（ dbf ）的方法，引入了采樣梯度矩陣演算法。This thesis discusses the pulse doppler ( pd ) weather radar signal processing system including digital intermediate frequency ( if ) receiver, especially on the application of if sampling and digital demodulation technique in pd weather radar signal processing system, the influence of amplitude and phase unbalances of in - phase and quadrature channels on weather radar echo spectrum estimation, ground clutters elimination algorithms and a typical engineering realization scheme of pd weather radar signal processing system
本論文研究的是採用數字中頻接收技術的脈沖多普勒氣象雷達信號處理系統，重點研究了中頻采樣及數字解調技術在脈沖多普勒氣象雷達信號處理系統中的應用、正交雙通道幅相不平衡對氣象回波譜估計的影響、地雜波濾波演算法，以及脈沖多普勒氣象雷達信號處理系統的具體工程實現。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。The thought that sampling frequency in targets measure system confirm as 3 is studied for the first time. it is proved from three aspects : the frequency spectrum of track, the error requirement of project and the rate of maximum number of allowable lost points in project
本文首次就目標坐標測定儀中采樣頻率確定為3hz的思想進行了研究，並分別從目標航路功率譜密度、實際工程中誤差要求和允許的最大漏測點概率等三方面加以論證。The main aim of speech signal processing is speech coding, speech recognition and speech understanding by automaton. in this paper, firstly, some basic signal process are discussed, such as signal filter, sampling, fft, pitch detection, then, they are tested on the testing board designed by the author
論文中首先對語音信號的基本處理問題進行了分析和對比，然後在自己設計的基於tms320vc5402的dsp實際系統上，進行了語音處理過程的濾波、采樣、傅立葉變換和譜包絡提取的演算法實現研究，討論了在演算法的dsp實現方法，分析了運行實驗結果。Drugs and the food examination and store the equipments : the color table instrument, the development box, super low temperature refrigerator, the germs sample machine, the water an analysis instrument, each kind of parameter instrument, each kind of bio - chemical experiment thing and other warehouse materials
藥品與食品檢測與貯藏設備色譜儀培養箱超低溫冰箱細菌采樣器水份分析儀各類參數儀各類生化試驗用品及其它倉儲材料。4. spectrum database has been built for reasearch areas, resample the spectrum of different object in spectrum database according to the centric wavelength of the select bands
建立了研究地區內典型地物的地物光譜庫，並分別地物按所選波段的中心波長進行了光譜重采樣。分享友人