A new SNR's estimator for QPSK Modulations in an AWGN channel.
Guangliang RenYilin ChangHui ZhangPublished in: IEEE Trans. Circuits Syst. II Express Briefs (2005)
Keyphrases
- modulation scheme
- signal to noise ratio
- bit error rate
- least squares
- ofdm system
- maximum likelihood
- estimation algorithm
- noise reduction
- maximum a posteriori
- recursive least squares
- error estimation
- communication systems
- importance sampling
- data sets
- variance estimator
- conditional expectation
- estimation error
- image coding
- image quality
- image segmentation
- real time