Wireless communication apparatus and receiving method

Details Wireless communication apparatus and receiving method Wireless communication apparatus and receiving method

2011-02-08

2011-02-08

Payne, David C (Department: 2611)

Pulse or digital communications

Receivers

Angle modulation

C327S238000, C327S254000, C329S304000, C370S203000, C370S206000, C370S208000, C370S210000, C708S322000

Reexamination Certificate

active

07885360

ABSTRACT:
A wireless communication apparatus receives an quadrature modulated signal, generate a local signal having a frequency different from a center frequency of the quadrature modulated signal, performs quadrature demodulation on the quadrature modulated signal by using the local signal, to obtain an I channel signal and a Q channel signal, performs Fourier transform on the I channel signal and the Q channel signal, to obtain signals in a frequency domain, and calculates a first correction coefficient for correcting phase distortion and amplitude distortion caused by the quadrature demodulation by using pairs of signals among the signals, each of the pairs are located at symmetrical frequency positions with respect to the frequency of the local signal.

REFERENCES:
patent: 2001-119364 (2001-04-01), None
“Joint Proposal: High throughput extension to the 802.11 Standard; PHY” IEEE 802.11-05/1102r4, Jan. 2006, pp. 1-82.
“Joint Proposal: High throughput extension to the 802.11 Standard; MAC” IEEE 802.11-05/1095r4, Jan. 2006, pp. 1-103.

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