The receipt weight calculator 34 calculates receipt weights by which a received phase can be turned into a reverse phase, based on the estimated direction, and outputs the thus calculated receipt weights B 1 to {HEAD ~ B N} as {TAIL ~ initial receipt weights} 
The receipt weight calculator 34 calculates receipt weights by which a received phase can be turned into a reverse phase , based on the estimated direction , and outputs the thus calculated receipt weights B 1 to { HEAD ~ B N } as { TAIL ~ initial receipt weights }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL