Microchip Technology Inc.

Hamid Shafiee

Rahim Bagheri

Masoud Djafari

Esmael Heidari

Mohsen Pourkhaatoun

Siddharth Shetty

Ali Fard

Kiran Gowda

Embodiments of the present disclosure include an OFDM receiver circuit, which includes an FFT circuit configured to calculate an FFT of a plurality of sample values received by the receiver circuit, and a smoothing circuit configured to identify equalizer coefficients for the sample values by truncating portions of an impulse response of the FFT.

Channel estimation in OFDM communication systems

A receiver circuit includes a conversion circuit configured to down-convert a received radio-frequency signal to a baseband signal, an analog-to-digital converter configured to sample the baseband signal into a sampled signal, a Fast Fourier transform (FFT) circuit configured to perform an FFT on the sampled signal, and a digital compensation circuit configured to compensate for IQ distortion in a frequency domain.

Digital compensation of IQ coupling in communication receivers

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Irvine, CA, United States of America

Hamid Shafiee