Howtosignalprocessing
- What is the channel estimation technique?
- What is channel estimation in OFDM?
- What is channel estimation and Equalization?
- How do you calculate channel coefficient?
What is the channel estimation technique?
The channel estimation algorithm extracts the reference signals for a transmit/receive antenna pair from the received grid. The least squares estimates of the channel frequency response at the pilot symbols are calculated as described in On Channel Estimation in OFDM Systems [2].
What is channel estimation in OFDM?
Channel estimation forms the heart of any orthogonal frequency division multiplexing (OFDM) based wireless communication receiver. Frequency domain pilot aided channel estimation techniques are either least squares (LS) based or minimum mean square error (MMSE) based.
What is channel estimation and Equalization?
Channel estimation provides information about distortion of the transmission signal when it propagates through the channel. This information is then used by equalizers so that the fading effect and/or co-channel interference can be removed and the original transmitted signal can be restored.
How do you calculate channel coefficient?
For a symbol spaced channel, one of the most straightforward ways to estimate the channel coefficients is to correlate the Rx signal with a known training sequence a[m] of length NP , commonly known as a Pseudo-Noise (PN) sequence.
