Nyquist rate converters have traditionally been used for low to moderate resolution data acquisition applications. In this paper, we describe a feedforward... Harjani,R.,Lee,... - 《Circuits & Systems II Analog & Digital Signal Processing IEEE Transactions on》 被引量: 59发表: 1998年 Monolithi...
For time-domain applications, the six-pole BesseI LIR filters divide the sample rate by 4, 10,20, or 40, producingNyquist ratesof 250 kHz, 100 kHz, 50 kHz, and 25 kHz, respectively. Measuring and simulating bombs bursting in air
The Nyquist rate sigma-delta modulator introduces N zeros in the quantization noise spectrum. These zeros are located at the frequencies of UWB-OFDM sub-carriers so that the quantization noise fills the gaps in the spectrum of the UWB-OFDM signal. Consequently, the presented sigma-delta modulator...
aAccording to Nyquist sampling theorem, a continuous signal can be properly sampled, only if it does not contain frequency components above one-half of the sampling rate. 根据Nyquist采样定理,只有当它不包含频率组分在采样率之上的一半一个连续的信号可以适当地被抽样。[translate]...
Adjustable Nyquist-rate System for Single-Bit Sigma-Delta ADC with Alternative FIR ArchitectureADCharmonic analysispower meterdigital signal processing (DSP)ASICdigital filterlow costlow powerVHDLFPGA prototypingThis paper presents a new smart and compact system dedicated to control the output sampling ...
Alias-Free Products of Signals Near Nyquist Rate Products of time-series signals have found wide-spread application in many fields of signal processing. For example, they are often used in modeling and co... CG Davis,KS Lorenz,G Joel,... - 《IEEE Transactions on Signal Processing》...
For an ADC, the Nyquist frequency is half the minimum sampling frequency of the ADC required to reconstruct fully the original signal from the sampled signal. This means that no information has been lost in the sampling process. The Nyquist rate is when the sampling frequency is twice the band...
However, these can be controlled by optimal design, demonstrating the potential for practical multifold reductions in sampling rate. 展开 关键词: Theoretical or Mathematical/ noise optimisation signal reconstruction signal sampling/ multiband signals optimal sub-Nyquist nonuniform reconstruction optimal sub-...
If the signal is sampled below the Nyquist rate, aliasing occurs. As a general rule, for a sample rate of fs, one would not be able to differentiate between any sine waves with frequencies Nfs/2±Δf, where N is an integer. In this case, the signal power for these frequencies will ...
Shannon's explanation of the theorem is: "If a function x(t) contains no frequencies higher than B hertz, it is completely determined by giving its ordinates at a series of points spaced 1/(2B) seconds apart." To accurately reproduce a signal, the sample rate must be twice the highest...