Receiving method and receiving apparatus

A receiving apparatus, comprising:

• a receiver which respectively receives a plurality of signals that contain known signals continuously within a predetermined period, via a plurality of antennas;
• a classification unit which changes the order of the plurality of signals and selects one of the plurality of phase rotated signals as a representative signal, and which changes the order of the plurality of received signals and selects the remaining phase rotated signals as signals to be processed;
• an initial detector which respectively detects errors in phase components of the signals to be processed relative to a phase component of the representative signal, as initial phase errors, within the period containing known signals;
• an error detector which respectively detects errors in phase components of the signals to be processed relative to a phase component of the representative signal, after the end of the period containing known signals, and which removes corresponding initial phase errors from the errors in phase components;
• a first phase rotation unit which respectively rotates the phase of the plurality of the signals to be processed by errors in phase component from which the initial phase error has been removed;
• an initial synchronizing signal generator which respectively generates a plurality of phase rotation signals for synchronizing the phase of the plurality of signals received by said receiver, at least over the period that contains known signals;
• and
• a second phase rotation unit which respectively rotates the phase of a plurality of signals that contain the representative signal and the phase-rotated signals to be processed, by the plurality of phase rotation signal generated by said signal generator.

A receiving apparatus, comprising:

• a receiver which respectively receives a plurality of signals that contain known signals continuously within a predetermined period, via a plurality of antennas;
• a derivation unit which derives a plurality of receiving weight factors for the plurality of signal received by said receiver at least over the period that contains known signals;
• a synthesizing unit which multiplies the plurality of derived receiving weight factors by the plurality of signals received by said receiver and which synthesizes a plurality of multiplication results;
• a classification unit which changes the order of the plurality of multiplication results and selects one of the plurality of multiplication results as a representative signal, and which changes the order of the plurality of multiplication results and selects the remaining multiplication results as signals to be processed;
• an initial detector which respectively detects errors in phase components of the signals to be processed relative to a phase component of the representative signal, as initial phase errors, in the period that contain known signals;
• an error detector which respectively detects errors in phase components of the signals to be processed relative to a phase component of the representative signal, after the end of the period that contains the known signals and which removes corresponding initial phase errors from the errors in phase components;
• and
• an update unit which respectively updates the receiving weight factors corresponding to the signals to be processed, by the errors in phase components from which the initial phase error has been removed.

A receiving method, comprising:

• receiving respectively a plurality of signals that contain known signals continuously within a predetermined period and generating respectively a plurality of phase rotation signals for synchronizing the phase of the plurality of received signals, at least over the period that contains known signals;
• rotating the phase of the plurality of received signals by the plurality of phase rotation signals generated by said generating, changing the order of the plurality of phase rotation results and selecting one of the plurality of phase rotation results as a representative signal, and changing the order of the plurality of phase rotation results and selecting the remaining phase rotation results as signals to be processed;
• and
• updating respectively the phase rotated signals corresponding to the signals to be processed, based on the errors in phase components of the signals to be processed relative to a phase component of the selected representative signal, after the end of the period containing known signals.

A receiving method, comprising:

• receiving respectively a plurality of signals that contain known signals continuously within a predetermined period and deriving a plurality of receiving weight factors for the plurality of received signal at least over the period that contains known signals;
• multiplying the plurality of derived receiving weight factors by the plurality of received signals, changing the order of the plurality of multiplication results and selecting one of the plurality of multiplication results as a representative signal, and changing the order of the plurality of multiplication results and selecting the remaining multiplication results as signals to be processed;
• detecting respectively errors in phase components of the signals to be processed relative to a phase component of the representative signal, as initial phase errors, within the period that contains known signals;
• and
• updating respectively the receiving weight factors corresponding to the signals to be processed, by signals from which the initial phase errors are respectively removed from the detected errors in phase components of the signals to be processed relative to a phase component of the representative signal, after the end of the period that contains known signals.

A recording medium which stores a program executable by a computer, the program including the functions of:

• receiving respectively a plurality of signals that contain known signals continuously within a predetermined period, via a plurality of antennas;
• generating respectively a plurality of phase rotation signals for synchronizing the phase of the plurality of received signals, at least over the period that contains known signals and storing the thus generated plurality of phase rotation signals in a memory;
• rotating the phase of the plurality of received signals by the plurality of phase rotation signals generated by said generating;
• changing the order of the plurality of phase rotated signals and selecting one of the plurality of phase rotated signals as a representative signal, and changing the order of the plurality of phase rotated signals and selecting the remaining phase rotated signals as signals to be processed;
• detecting respectively errors in phase components of the signals to be processed relative to a phase component of the representative signal, after the end of the period containing known signals;
• and
• updating respectively on the memory the phase rotated signals corresponding to the signals to be processed, based on the detected errors in phase components.

A recording medium which stores a program executable by a computer, the program including the functions of:

• receiving respectively a plurality of signals that contain known signals continuously within a predetermined period, via a plurality of antennas;
• deriving a plurality of receiving weight factors for the plurality of received signal at least over the period that contains known signals, and storing the thus derived plurality of receiving weight factors in a memory;
• multiplying the plurality of receiving weight factors stored in the memory by the plurality of received signals and synthesizing a plurality of multiplication results;
• changing the order of the plurality of multiplication results and selecting one of the plurality of multiplication results as a representative signal, and changing the order of the plurality of multiplication results and selecting the remaining multiplication results as signals to be processed;
• detecting respectively errors in phase components of the signals to be processed relative to a phase component of the representative signal, as initial phase errors, within the period that contains known signals;
• detecting respectively errors in phase components of the signals to be processed relative to a phase component of the representative signal, after the end of the period that contains the known signals, and removing corresponding initial phase errors from the errors in phase components;
• and
• updating respectively on the memory the receiving weight factors corresponding to the signals to be processed, by the errors in phase components from which the initial phase errors have been removed.