* This program shows how to detect defects (scratches) in * an inhomogeneously illuminated surface by filtering in * the frequency domain. * First, a suitable bandpass filter is created. Then, the *…
Very high-frequency log-domain bandpass filter - El-Gamal, Roberts - 1998 () Citation Context ...sI. INTRODUCTIONsHighly linear all n-p-n bipolar transconductors are widelysused in many applications to provide faithful voltage-tocurrent conversion of input stages, such as continuous-timesfilters...
Overlaying the noisy input and the filter response in the frequency domain explains why the filtering operation is successful. Both the blocker signal at 2.35 GHz and much of the noise are significantly attenuated. NFFT = 2^nextpow2(signalLen);% Next power of 2 from length of yY = fft(noi...
The design of passive microwave functions, and especially filters, is a study domain of the most important interest. Indeed, with the widespread applications of communication systems, the bandpass filter is an essential component. Thus, the quality of filter is extremely important. The devel...
A frequency-tunable microwave bandpass filter including a wave guide having a rectangular cross-section and including a stationary first conductive portion I and a movable second conductive portion II. The first portion includes first conductive partitions having one or more conductive obstacles related ...
In this paper, an ultra-wideband (UWB) bandpass filter with a frequency notch is designed and implemented. The proposed filter is based on coupled microstrip line with U-shaped defected ground structure (DGS). By introducing embedded open stubs (EOS) into input and output feed lines, the UWB...
(A) A box-car shaped amplitude spectrum in the frequency domain, and (B) its time domain counterpart, the sinc function. (5.2)At=sinct=sintt The issue with this function is that it has amplitudes in ±∞ time interval (Fig. 5.16B). In practice, a filter operator cannot have an ...
Frequency-tunable bandstop-bandpass dual-function microwave filter This letter presents a frequency-tunable, dual-function, microwave filter with both bandpass and bandstop functionalities. The filter uses a single switch ... K Lee,TH Lee,GC Park,... - 《Ieice Electronics Express》 被引量: 0发表...
The dashed vertical line indicates the frequency of the sinusoidal signal. (B) Sinusoidal signal after convolution with the two models in the insets. The dotted arrow from right inset to the signals in (B) shows the relation between the filter profile and the resulting signal. Full size ...
In this work a method to apply the eigenfilter approach to the design of IIR filters in the frequency domain is described. The eigenfilter approach is an a... F Argenti,ED Re - IEEE 被引量: 30发表: 2002年 On the Eigenfunctions Corresponding to the Bandpass Kernel in the Case of Degene...