Patent ID: 8345791

Claim:
Method for receiving a received signal corresponding to a multicarrier signal sent by at least one sender device through a transmission channel, said multicarrier signal being formed by a temporal succession of symbols formed by a set of data elements comprising: informative data elements, and for at least certain of said symbols, reference data elements called pilots whose value and location at transmission are known to at least one receiver designed to make a reception of said multicarrier signal, each of said data elements modulating a carrier frequency of said signal, a carrier frequency modulated by one of said data elements being called a carrier, said reception method comprising: a step of first estimation of said transmission channel, wherein at least one of said pilots comprises an isolated pilot in transmission whose direct neighbor carriers in time/frequency space carry informative data elements, a step of extracting said isolated pilot, delivering a complex value representing said isolated pilot, after passage through said transmission channel, a step of local refining of said first estimation, taking account of said complex value of said pilot, delivering a refined local estimation of said transmission channel, wherein said local refining comprises comparing an imaginary interference term affecting said isolated pilot to a local correction of said first estimation as a function of the result of said comparison.