Receiving apparatus, transmitting apparatus, control circuit, storage medium, reception method, and transmission method

A transmitting apparatus, comprising:

• known sequence generation circuitry to generate a known sequence to be multiplexed with a data sequence;
• multiplexing circuitry to multiplex the data sequence and the known sequence;
• and
• modulation circuitry to modulate, by a frequency modulation scheme, a signal into which the data sequence and the known sequence are multiplexed, wherein
• the known sequence generation circuitry generates:
• the known sequence in which at least three temporally continuous symbols after modulation by the frequency modulation scheme do not coincide in frequency at which power is concentrated;
• or the known sequence in which power is concentrated at one specific frequency when signals transmitted from a plurality of transmitting antennas are superimposed together at a receiving apparatus.

A transmission method, comprising:

• generating a known sequence to be multiplexed with a data sequence;
• multiplexing the data sequence and the known sequence;
• and
• modulating, by a frequency modulation scheme, a signal into which the data sequence and the known sequence are multiplexed wherein
• generating the known sequence includes generating:
• the known sequence in which at least three temporally continuous symbols after modulation by the frequency modulation scheme do not coincide in frequency at which power is concentrated;
• or the known sequence in which power is concentrated at one specific frequency when signals transmitted from a plurality of transmitting antennas are superimposed together at a receiving apparatus.