Alexander Ratke, articles - page 2

What tricks can one play on a bandwidth-limited IQ modulator?
How does an IQ modulator work?Why do we use IQ samples?What is IQ transmitter? How does an IQ modulator work?An IQ modulator is a device that conver...
In what way does the cross-spectral density of two signals describe their similarities?
How do you interpret cross spectral density?How does power spectral density compare?What does the spectral density function of any signal?What is the...
What are the possible forms of generator matrix of a systematic linear block code?
What is generator matrix in linear block code?How do you convert a generator matrix to systematic form? What is generator matrix in linear block cod...
Why does a signal with constant frequency have spots that changes colors at a specific value of scale (and so frequency) in the scalogram?
What does a scalogram show?What is the difference between CWT and DWT?What is scalogram matlab? What does a scalogram show?The scalogram is the abso...
Why does an FFT-based filter change phase?
Do filters cause phase shift?Does FFT give phase?How does FFT filter work?What is FFT phase spectrum? Do filters cause phase shift?Filters, however,...
How to calculate data rate in ground to satellite communication
What is the formula for data rate?What is data rate in satellite?What is data rate in communication?How is satellite transponder bandwidth calculated...
What image similarity measure is best for measuring the structural similarity of two images?
The structural similarity index measure (SSIM) is a method for predicting the perceived quality of digital television and cinematic pictures, as well ...
What steps are necessary to get the same impulse as before a FFT + IFFT
What is the difference between FFT and Ifft?What is impulse response of a system? What is the difference between FFT and Ifft?FFT (Fast Fourier Tran...
Identification of properties of a given FIR filter
How do you know if a FIR filter is stable? How do you know if a FIR filter is stable?The necessary and sufficient condition for IIR filters to be st...