Method for estimation of an interfering signal, method for attenuation of an interfering signal contained in a received signal, and receiving system

A receiving system for receiving a signal for a communication network, the received signal being composed of an interfering signal (SI) and a data signal;

• the interfering signal having a frequency, an amplitude, and a phase;
• the data signal being modulated, the received signal comprising at least a previous encoding block and a current encoding block, the previous encoding block and the current encoding block comprising a number N of samples, each sample being identified by an index ranging from 0 to N−1;
• the receiving system comprising:
• a receiving device suitable for receiving the signal, and
• a device for estimation and attenuation of the interfering signal (IS), comprising:
• a frequency estimation unit capable of estimating the frequency θn(n) of the interfering signal (SI) contained in the current encoding block as a function of the frequency θn(n−1) of the interfering signal contained in the previous encoding block and of the number N of samples,
• a phase and amplitude estimation unit for estimating the amplitude and phase of the interfering signal (SI) contained in the current encoding block, based on the estimated frequency θn(n) of the interfering signal,
• a generator capable of generating a sinusoidal signal (SF) opposite to the estimated interfering signal (SI),
• an adder suitable for adding the generated sinusoidal signal (SF) to the received signal.