Apparatus and method for hierarchical modulation using pilot, apparatus and method for receiving hierarchically modulated signal

The apparatus and method of receiving a hierarchical modulation apparatus and method, a layer-modulated signal with a pilot is described. The hierarchical modulation apparatus using a pilot of the present invention includes a first encoding unit for encoding a first layer signal sequence; A second encoder for encoding the enhancement layer signal sequence; The pilot inserting unit inserting a pilot signal sequence encoding a signal in the second encoding unit; And it characterized in that it comprises a first encoder and the pilot inserting unit and combining the hierarchical modulator modulating signals respectively output from the unit.