標(biāo)題: Titlebook: An Introduction to the Analysis & Processing of Signals; Paul A. Lynn Textbook 1982Latest edition Macmillan Publishers Limited 1982 electr [打印本頁(yè)] 作者: Boldfaced 時(shí)間: 2025-3-21 17:19
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作者: expire 時(shí)間: 2025-3-21 21:41 作者: Yag-Capsulotomy 時(shí)間: 2025-3-22 02:36 作者: 星星 時(shí)間: 2025-3-22 07:44
Sampled-Data Signalsntly. In recent years such signals have come to assume great importance because of developments in digital electronics and computing. Since it is not possible to feed continuous data into a digital (as opposed to analogue) computer, any signal or data input must be represented as a set of numerical 作者: 放牧 時(shí)間: 2025-3-22 12:46
Random Signalspectra we calculate for them specify the magnitudes and relative phases of the sinusoidal waves which, if added together, would exactly resynthesise the original waveforms. By contrast, the value of a random waveform or signal is not specified at every instant of time, nor is it possible to predict 作者: Assemble 時(shí)間: 2025-3-22 15:32 作者: figure 時(shí)間: 2025-3-22 21:00
Modulation and Samplingplies the variation or adjustment of a property of one signal, generally referred to as the ‘carrier’, by a second waveform known as the ‘modulating signal’. The modulated carrier contains (at least in principle) complete information about the modulating signal, and may therefore be used as a substi作者: Femish 時(shí)間: 2025-3-22 22:10 作者: DEFT 時(shí)間: 2025-3-23 05:17
Signal Recovery, Detection and Predictiontracting a signal from random noise: it arises to some extent in almost all communication, measurement and recording situations. Another interesting problem is that of predicting the future of a random signal as accurately as possible. Not surprisingly, we shall find the earlier discussions of rando作者: 無(wú)禮回復(fù) 時(shí)間: 2025-3-23 08:29 作者: cartilage 時(shí)間: 2025-3-23 10:31
https://doi.org/10.1007/978-3-642-72895-2ng its waveshape by a precise analytic function) is too great to be worth while. In such cases it is usual to evaluate some average properties of the signal which describe it adequately for the task in hand.作者: 不吉祥的女人 時(shí)間: 2025-3-23 15:02
Random Signalsng its waveshape by a precise analytic function) is too great to be worth while. In such cases it is usual to evaluate some average properties of the signal which describe it adequately for the task in hand.作者: FER 時(shí)間: 2025-3-23 20:01
https://doi.org/10.1007/978-3-322-99000-6ncies, and rejects others: such frequency ranges are called ‘passbands’ and ‘stopbands’ respectively. We shall see later that the ideal filter, which would introduce no attenuation of input signals falling within the passband, and infinite attenuation of signals in the stopband, is not attainable in practice.作者: 深淵 時(shí)間: 2025-3-24 00:50
Walter Kikuth,Franz Grosse-Brockhoffroblem is that of predicting the future of a random signal as accurately as possible. Not surprisingly, we shall find the earlier discussions of random signals (especially section 5.4) and linear systems (especially section 7.4) useful; and to these will be added some new perspectives in the processing of random signals and noise.作者: 拔出 時(shí)間: 2025-3-24 04:00 作者: Benzodiazepines 時(shí)間: 2025-3-24 09:06
Signal Recovery, Detection and Predictionroblem is that of predicting the future of a random signal as accurately as possible. Not surprisingly, we shall find the earlier discussions of random signals (especially section 5.4) and linear systems (especially section 7.4) useful; and to these will be added some new perspectives in the processing of random signals and noise.作者: incubus 時(shí)間: 2025-3-24 12:20 作者: 大量殺死 時(shí)間: 2025-3-24 18:23
Ernst Kofrányi,Friedrichkarl Jekattwo cases, the carrier is assumed to be a relatively high frequency sinusoid, the amplitude or frequency of which is modulated in sympathy with the instantaneous value of the signal .(.); and in the other two examples, .(.) is made to modulate either the width or the height of successive pulses in a pulse-train.作者: 貪心 時(shí)間: 2025-3-24 22:01 作者: TRACE 時(shí)間: 2025-3-25 00:17
Modulation and Samplingtwo cases, the carrier is assumed to be a relatively high frequency sinusoid, the amplitude or frequency of which is modulated in sympathy with the instantaneous value of the signal .(.); and in the other two examples, .(.) is made to modulate either the width or the height of successive pulses in a pulse-train.作者: Adjourn 時(shí)間: 2025-3-25 04:40
Background 1852 and the development of the electric telegraph greatly enhanced the speed and the reliability with which messages could be conveyed, and led to the widespread use of signalling for purposes other than warfare and defence.作者: 法律的瑕疵 時(shí)間: 2025-3-25 10:08
Periodic Signalsform is quasi-periodic and may usefully be treated as truly periodic for some purposes. It is worth noting that a truly repetitive signal is of very little interest in a communications channel, since no further information is conveyed after the first cycle of the waveform has been received. One of t作者: 輕率的你 時(shí)間: 2025-3-25 12:28
Aperiodic Signalsetitive in nature and which cannot therefore be represented by Fourier series containing a number of harmonically-related frequencies. Fortunately, however, it is possible to derive frequency spectra for such signals using as a starting point the work we have already done on the Fourier series.作者: 首創(chuàng)精神 時(shí)間: 2025-3-25 19:48 作者: Electrolysis 時(shí)間: 2025-3-25 21:00 作者: 做作 時(shí)間: 2025-3-26 00:40 作者: 沒(méi)有準(zhǔn)備 時(shí)間: 2025-3-26 08:17 作者: overweight 時(shí)間: 2025-3-26 09:26 作者: prostatitis 時(shí)間: 2025-3-26 15:19
Ernst Kofrányi,Friedrichkarl Jekatignal applied to its input. In other words, it is regarded as an ‘input-output’ device, whose detailed internal construction does not concern us. This is often referred to as the ‘black-box’ approach: it involves us in mathematical descriptions of the overall performance of the signal processor, but作者: 完成 時(shí)間: 2025-3-26 18:49
https://doi.org/10.1007/978-3-642-91173-6on. But in spite of these advantages of linear processing, the reader is asked to bear in mind that a variety of useful signal techniques may be achieved by using nonlinear systems and devices, and that the analysis and synthesis of signals and systems by reference to Fourier and Laplace transform t作者: 單調(diào)性 時(shí)間: 2025-3-26 21:59
An Introduction to the Analysis & Processing of Signals作者: SNEER 時(shí)間: 2025-3-27 02:04
An Introduction to the Analysis & Processing of Signals作者: 性別 時(shí)間: 2025-3-27 08:46 作者: 一夫一妻制 時(shí)間: 2025-3-27 13:28 作者: LEER 時(shí)間: 2025-3-27 15:40 作者: 不要不誠(chéng)實(shí) 時(shí)間: 2025-3-27 19:21 作者: 有毒 時(shí)間: 2025-3-27 22:44
https://doi.org/10.1007/978-3-322-88121-2e spectrum of such a signal consists of a number of discrete frequencies and is known as a ‘line’ spectrum. Although the analysis of periodic signals gives results which can be of great practical interest, the great majority of signals are not of this type. Firstly, even signals which repeat themsel作者: 秘密會(huì)議 時(shí)間: 2025-3-28 03:42 作者: 財(cái)產(chǎn) 時(shí)間: 2025-3-28 08:24
https://doi.org/10.1007/978-3-642-72895-2pectra we calculate for them specify the magnitudes and relative phases of the sinusoidal waves which, if added together, would exactly resynthesise the original waveforms. By contrast, the value of a random waveform or signal is not specified at every instant of time, nor is it possible to predict 作者: Distribution 時(shí)間: 2025-3-28 10:27
Ernst Kofrányi,Friedrichkarl Jekation, we now turn our attention to the ways in which signal properties are modified by various types of processing. Some of the major reasons for interest in signal processing were outlined in sections 1.3 and 1.4. There it was mentioned that by far the majority of signal processing devices are elect作者: 包租車(chē)船 時(shí)間: 2025-3-28 15:43 作者: Orchiectomy 時(shí)間: 2025-3-28 19:53
https://doi.org/10.1007/978-3-322-99000-6s any frequency-selective device or processor, in practice it is generally reserved for a system which transmits a certain range (or ranges) of frequencies, and rejects others: such frequency ranges are called ‘passbands’ and ‘stopbands’ respectively. We shall see later that the ideal filter, which 作者: Coordinate 時(shí)間: 2025-3-29 02:12 作者: Optic-Disk 時(shí)間: 2025-3-29 03:27 作者: 厚顏 時(shí)間: 2025-3-29 08:29
https://doi.org/10.1007/978-1-349-86054-8electrical engineering; engineering; processing; signal; signal processing作者: 舊病復(fù)發(fā) 時(shí)間: 2025-3-29 11:35
Macmillan Publishers Limited 1982
