By M. N. Murthy
Read Online or Download Sampling Theory and Methods PDF
Best signal processing books
The arrival of fiber optic transmission platforms and wavelength department multiplexing has resulted in a dramatic raise within the usable bandwidth of unmarried fiber structures. This booklet offers certain insurance of survivability (dealing with the chance of wasting huge volumes of site visitors info because of a failure of a node or a unmarried fiber span) and site visitors grooming (managing the elevated complexity of smaller person requests over excessive capability info pipes), either one of that are key concerns in smooth optical networks.
This publication gathers jointly accomplished info which attempt and strategy execs will locate precious. The innovations defined can help make sure that attempt tools and information accumulated mirror genuine gadget functionality, instead of 'testing the tester' or being misplaced within the noise ground. This e-book addresses the basic matters underlying the semiconductor try out self-discipline.
Information the paradigms of opportunistic spectrum sharing and white area entry as powerful capability to meet expanding call for for high-speed instant conversation and for novel instant conversation functions This e-book addresses opportunistic spectrum sharing and white area entry, being quite conscious of sensible concerns and ideas.
The digicam conceals extraordinary technological options that impact the formation of the picture, the colour illustration or automatic measurements and settings. ** From photon to pixel photon ** describes the machine either from the perspective of the physics of the phenomena concerned, as technical parts and software program it makes use of.
Additional info for Sampling Theory and Methods
This is done by properly choosing the frequency ratio and sometimes by injecting a small amount of noise (dither) with the input signal. The exact same precautions apply to measuring DAC distortion with an analog spectrum analyzer. 44 shows the FFT output for an ideal 12-bit ADC. Note that the average value of the noise ﬂoor of the FFT is approximately 100 dB below full-scale, but the theoretical SNR of a 12-bit ADC is 74 dB. 43: Effect of ratio of sampling clock to input frequency on SFDR for ideal 12-bit ADC w ww.
1143 MSPS, fc ϭ 71 MHz, and NZ ϭ 18. Now assume that we desire more margin for the antialiasing ﬁlter, and we select fs to be 10 MSPS. Solving Eq. 7. 7 to the next lowest integer, giving NZ ϭ 14. Solving Eq. 519 MSPS. 519 MSPS, fc ϭ 71 MHz, and NZ ϭ 14. The above iterative process can also be carried out starting with fs and adjusting the carrier frequency to yield an integer number for NZ. 3 Data Converter AC Errors This section examines the AC errors associated with data converters. Many of the errors and speciﬁcations apply equally to ADCs and DACs, while some are more speciﬁc to one or the other.
Most ADCs today have a built-in sample-and-hold function, thereby allowing them to process AC signals. This type of ADC is referred to as a sampling ADC. 26. com 26 Chapter 1 the output data can have large errors, depending on the location of the code. Most ADC architectures are subject to this type of error—some more, some less—with the possible exception of Flash converters having well-matched comparators. Assume that the input signal to the encoder is a sinewave with a full-scale amplitude (q2N/2), where q is the weight of 1 LSB.