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What is Effects of Windowing on Signal Spectrum about?
1. Fourier analysis estimates the spectral content of a signal, but windowing affects this by smearing energy across frequencies. 2. The rectangular window has high side lobe levels, smearing energy and reducing accuracy, especially when the signal frequency is not an exact multiple of the frequency resolution. 3. Other windows like Hanning and Flat-Top reduce side lobes but increase main lobe width, trading off between leakage and frequency resolution. The best window depends on the application and signal
- Author
- kandela light
- Language
- EN