確知信號 的英文怎麼說
中文拼音 [quèzhīxìnháo]
確知信號
英文
deterministic signal-
The signal we named it fundamental wave ; according to the fundamental wave, coefficients of the fundamental wave can be lined in a sequence. when the unique of the dissolve of the fundamental wave can be confirmed, the sequence of the coefficients can be regarded as one of representation forms of the signal itself ; theory of dissolvable signal shows that when order of the matrix of fundamental wave sampling equals to number of fundamental waves, the sequence of the sampling values from sampling points must be matched one by one with the sequence of the coefficients of fundamental waves. the sampling composed by sequences of the sampling values must be full sampling ; the relevant deductions of the theory of dissolvable signal shows that when sampling the signal, sampling frequency must be lager than the ratio of the number of fundamental waves to the occupation time of the fundamental waves ; to band - limited signals, when the fundamental wave is a sine signal, the results from the relevant deductions of theory of dissolvable signal is coherent to the classic sampling theory
本文通過分析認為，當信號集中的任一信號可表示為一系列已知信號的線性代數和時，信號集便構成可分解信號集，已知信號稱為基波信號；對可分解信號而言，基波系數構成一序列，當對指定的基波信號集分解唯一確定時，系數序列本身便是信號的一個表示；可分解信號采樣定理指出當基波樣值矩陣的秩等於基波數時，則由采樣點處的采樣樣構成的樣值序列必與基波系數序列一一對應，從而由該樣值序列構成的采樣必為完全采樣；可分解信號采樣定理中的推論指出，對信號集進行采樣，采樣頻率必須大於其信號分解的基波數與其對應時長之比；對有限帶寬信號，若基波信號為正弦信號時，由可分解信號采樣定理推論給出的結論與經典采樣定理一致。To exceeding ultimate parameter signal, this device can warn and disply in order to announce on - the - spot operator to ensure productional safety
對超越極限的信號進行報警顯示，及時通知現場操作人員，確保生產安全。Researches the basis watermark managing works particularly and systemly. there are many works to do on watermak technology except watermark embedding and extraction arithmetics such as the watermark choosing, encoding, modulating, demodulating and the watermark capacity. these prior and ultimate works ensure that the arithmetic is brought into effect. just understanding these, this paper analyses and researches the basic watermark theoretics in many pages. it brings forward chaos modulation on watermark modulating, brings forward chaos permuting on image permuting, introduces bch encoding on letter watermark processing and discusses the approximate estimate of the watermark capacity in dct domain and dwt domain by applying the current communication theoretics. there works not only extend ways for the later work but also are significative on watermark research
全面系統地研究了水印信號的處理技術數字水印技術除了水印嵌入和提取的演算法外，還有許多工作需要做，如水印的選碼、編碼、調制、解調、能量的確定等等，這些預處理和后處理工作是演算法有效實施的必要保證，正是基於這樣的認識，本文利用較大的篇幅對水印的基本理論知識進行了詳細的分析和研究，在水印的調制方面，提出了混沌調製法；在圖像水印的置亂方面，提出了混沌置亂法；在文字水印的處理上，引入了bch編碼；在水印容量分析方面，結合現代通信理論，對圖像在dct域和小波域內的水印容量估算進行了詳細的探討，這些工作不僅為本文後期工作鋪平了道路，而且對數字水印的研究具有重要的意義。( 2 ) develop an urban microscopic traffic simulation system, which involves vehicle generation model, network model, traffic regulation model, signal control model, vehicle action model, route choice model and intersection turning model. ( 3 ) realize and research the method that signal cycle and phases are assigned by the traffic need. when vehicles od is known, this method can be used to decide the maximum traffic capacity of signal - controlled intersection and the evaluation reference of current control method
模型中充分考慮了鄰道車輛對駕駛行為的影響及駕駛員的反應延遲，使模型更符合真實情況； （ 2 ）開發了城市微觀交通模擬系統：該系統包括車輛產生模型、路網模型、交通規則模型、信號燈控制模型、車輛行為模型、路徑選擇模型、路口轉向描述模型； （ 3 ）在模擬應用中實現並研究了信號燈周期及其相位按交通需求動態分配的方案，提出該項模擬可用於確定在已知od下，信號燈控制路口的最大通行能力，並可作為現有控制方案的評估依據。While the installed video sensor detects abnormal movement, the system will record the detected field and pops up phonetic alarm and sound and light alarm for the management. in addition, the system sends the messages to the management via mobile phones. the application of the system protects safety of the scientific achievements and standards establishment in the shanghai institute of standardization
鑒于機房的重要性，進出機房要通過指紋驗證，而且，當系統檢測到消防報警信號后聯動門禁系統打開機房門，確保機房人員的安全同時機房內安裝有防盜報警探頭，當探頭檢測到有人活動則聯動對應的攝像機進行錄像，對于重要的報警事件不僅通過聲光電話等方式對外報警，還通過手機簡訊通知相應的管理人員進行系統的維護與管理。The purpose of eeg signal processing is to extract the hidden or weak patterns that probably have some physiological and / or psycho - physiological significance from eeg signals in sophisticated noise background and then to apply them to the research on clinical medicine or cognitive science
我們對腦電信號處理的目的就是為了從復雜的背景噪聲中分離出有用的腦電信號，進而從中提取出具有明確生理意義的腦電特徵，並應用於臨床醫學和腦認知科學的研究。One important feature of radio signals ’ is that the signals are easy to catch and to disturb. in order to disturb the radio signals, parameters, including code rate, modulation, protocol, protection methods and channel coding, about satellite ’ s signals should be known. so, it is possible to receive the data from satellites and obtain lots of information from it, and even to destroy the undesired information
衛星通信系統的遙控遙測信息都是通過無線通道傳遞，而無線電信號的一個很重要的特性就是發射易被接收、易被干擾，實現干擾的前提是對衛星信號參數的極大了解，這包括明確信號的碼速率、調制方式、所用協議、保密措施及通道編碼等，因此，通過接收衛星數據以獲取大量的未知信息，甚至破壞掉對己的不利信息就成為可能。The analysis shows that by using correction function processing to the collected signals, the periodicity of the signal can be checked conveniently, the frequency - domain response of linear systems with uncertain parameters can be identified, useful signals can be checked out and extracted from the noise
由分析可知，對採集到的信號做相關函數的處理可以方便地對信號的周期性進行檢測，確定未知參數的線性系統的頻域響應，檢測噪聲中有用信號，並對噪聲中的信號進行提取。The matching pursuit techniques are applied to enhance speech signal, and a method to determine the threshold of coherent ratio is provided in the enhancement procedure based on matching pursuit. with the method, the noisy signal can be efficiently enhanced in a rather wide range while the statistical property of signal and noise is unknown
運用匹配跟蹤技術處理了語音信號增強問題，給出了匹配跟蹤信號增強過程中相干比閾值的確定方法，實現了在未知信號與噪聲統計特性的情況下，在相當大的范圍內明顯增強信號的目的。Based on ica post processing matched filter multi - user detection lets the output of traditional matched filter to initialize the ica iterations, not only the known spread information of interesting user is used to overcome the uncertainness of ica, but also the character of statistical independence is used. the simulation results show that it advances the ability of traditional detector when the signal - noise - ratio is large. keywords code division multiple access ; independent component analysis ; channel estimation ; matched filter ; blind multi - user detection
基於ica后處理的匹配濾波多用戶檢測是用傳統的檢測器的輸出來初始化ica的迭代，它不但充分利用多用戶信號的已知信息，克服了ica的不確定性問題，同時也充分利用了多用戶信號的統計獨立性，模擬實驗結果證明這種多用戶檢測演算法在高信噪的情況下，誤碼性能改善隨著信噪比的提高不斷增加。Nieto and anderson insist that it should be possible to correct for these factors and determine the direction of the anomalous force, especially in pioneer 11 ' s trajectory between jupiter and saturn
尼托與安德森堅信這些因素可以更正，並確知異常作用力的方向，特別在先鋒11號介於木星與土星間的軌跡。These results showed these proteins have a high degree of similarity ; they are basic and cysteine - rich proteins with a signal peptide and a common pattern of eight cysteines that engaged in four disulphide bridges holding together four a helices and stabilizing the structural fold. a hydrophobic central cavity in which can occupied by lipids is found between the four helices. however, it has been difficult to draw any conclusions about the in vivo activity of nsltps from their lipid binding properties because it is unknown which ligands, if any, are bound to nsltps in vivo
不同物種的非特異性轉移蛋白具有很高同源性，它們是堿性的富含半胱氨酸的蛋白質，在n端有一個信號序列， 8個保守的半胱氨酸殘基能形成4個二疏鍵以維持蛋白的空間結構，推測在其空間結構的中心形成了一個能容納脂類物質的洞穴，但在體內還不知道nsltp的配體包括哪些物質，對于nsltp能否在體內能夠結合併轉運脂類還沒有明確的定論。Especially during the lauching test period, with limited lauching test times and fault diagnosis experience, how to fully utilize current missile fault finding knowledge to locate the exact missile fault from measurable singnals and presented omens, has become a key factor in accelerating missile development
尤其是在導彈研製試射階段，由於實彈打靶次數有限，故障診斷知識貧乏，所以如何充分利用現有的導彈故障診斷知識，從有限的可測信號和徵兆中較為準確的診斷出導彈試射過程中出現的故障，已成為加快地空導彈研製進程的關鍵環節。A simulation method is proposed to predict the motion artifacts of plasma display panels ( pdps ). the method simulates the behavior of the human vision system when perceiving moving objects. the simulation is based on the measured temporal light properties of the display for each gray level and each phosphor. both the effect of subfield arrangement and phosphor decay are involved. a novel algorithm is proposed to improve the calculation speed. the simulation model manages to predict the appearance of the motion image perceived by a human with a still image. the results are validated by a set of perceptual evaluation experiments. this rapid and accurate prediction of motion artifacts enables objective characterization of the pdp performance in this aspect
針對目前等離子顯示屏普遍存在的運動偽像問題，提出了一種新穎的模擬計算方法，該方法實現了對等離子體顯示屏運動偽像的準確、快速估計.該方法通過測量等離子顯示屏不同顏色不同灰度下光信號隨時間的變化情況，模擬人眼對運動圖像的視覺感知行為，模擬計算出任意圖像以一定速度運動下的視覺感知效果.新演算法不但加入了等離子顯示屏熒光粉的延遲效應的影響，而且提高了模擬計算速度.所得模擬結果與實際主觀視覺感知實驗相符.這種快速準確的估計使對等離子顯示器件運動偽像的客觀評價成為可能Abstract : a simulation method is proposed to predict the motion artifacts of plasma display panels ( pdps ). the method simulates the behavior of the human vision system when perceiving moving objects. the simulation is based on the measured temporal light properties of the display for each gray level and each phosphor. both the effect of subfield arrangement and phosphor decay are involved. a novel algorithm is proposed to improve the calculation speed. the simulation model manages to predict the appearance of the motion image perceived by a human with a still image. the results are validated by a set of perceptual evaluation experiments. this rapid and accurate prediction of motion artifacts enables objective characterization of the pdp performance in this aspect
文摘:針對目前等離子顯示屏普遍存在的運動偽像問題，提出了一種新穎的模擬計算方法，該方法實現了對等離子體顯示屏運動偽像的準確、快速估計.該方法通過測量等離子顯示屏不同顏色不同灰度下光信號隨時間的變化情況，模擬人眼對運動圖像的視覺感知行為，模擬計算出任意圖像以一定速度運動下的視覺感知效果.新演算法不但加入了等離子顯示屏熒光粉的延遲效應的影響，而且提高了模擬計算速度.所得模擬結果與實際主觀視覺感知實驗相符.這種快速準確的估計使對等離子顯示器件運動偽像的客觀評價成為可能3. through experiment using sensor and technique of dynamic measurement, the data of the pump pressure, pressure of upper and nether cavity of hydraulic vat and punching power has obtained synchronously. then exact figure and corresponding relation of these parameter also some relationship between these parameter is got by means of technology of signal processing during elevating, falling and pressure - retaining. 4
在液壓打樁錘實驗裝置上利用傳感器和動態測試技術得到油泵出口壓力、液壓缸上、下腔壓力和樁錘下打力的同步實測數據，再利用信號處理技術分析上述參數在上升、下打和保壓過程的精確值及對應關系，獲取了液壓系統動力學參數與打樁錘力學特性關系的設計知識。This technology can use computer to sense the environments around automatically and identify the sounder by analysis of audio signals, which can make computer has the auditory intelligence
它通過聲音感知器對外界環境聲音信號進行分析處理，自動確認外界環境中是否存在所記錄的發聲物體，從而使感知器具有聽覺智能。Sensors in your car tuned to radio signals from orbiting satellites can locate your car precisely at any moment and warn of traffic jams
你汽車上與繞軌道運行的衛星發出的無線電信號調諧的傳感器能隨時精確地確定你汽車的方位，並告知交通阻塞情況。This paper studies a design method of decentralized signal detection system which consists of adaptive fuzzied local - detectors and a data fusion rule of on - line self - learning weights. the local - detectors for inaccurate signal parameters are modeled by means of fuzzy sets which can be adapted to change of the inaccurate signal parameteres. the data fusion center where the optimal declsion rules are used as objective function can learn the local decision weights on - line. the robustness of the fuzzied local - detectors and the adaptability of the self - learned fusion rule make it true that the detection performance of the decentralized detection system is improved under uncertainty and this system can also process the decentralized signal detection with a unknown parameter of unknown distribution or non - random unknown parameter
本文研究了一種由局部自適應模糊檢測器和在線自學習融合演算法所構成的分散式信號檢測系統的設計方法.由模糊集對不精確信號參數的局部檢測器進行建模，該模糊模型可自適應不精確信號參數的變化.融合中心以最佳融合規則作為目標函數在線自學習局部判決的權重.局部模糊檢測器的魯棒性和自學習融合演算法的自適應性使該分散式檢測系統在不確定環境下的檢測性能得到提高.也使該系統能夠處理未知分佈的未知參數以及非隨機未知參數的分散式信號檢測I don ' t know if at that point any scientist would have predicted that we were going into an el nino, but certainly it would have been ringing bells with them
我不知道科學家們是否根據溫度預測出了厄爾尼諾的到來，但那確實已經跟人們發出信號了。分享友人