A transmitter (102) generates a first set of data symbols and a first pilot symbol (601) at a first time, and a second set of data symbols and a second pilot symbol (602) at a different, second time. The first (601) and second (602) pilot symbols are each represented by first (701) and second (702) pilot...http://www.google.com.hk/patents/US7251291?utm_source=gb-gplus-share專利 US7251291 - System and method for I/Q imbalance compensation
