SIDE LOBE SUPPRESSION METHOD FOR ADAPTIVE ANTENNA

申请公布号：JP2004072489(A)

申请号：JP20020230197

申请日期：2002.08.07

申请公布日期：2004.03.04

申请人：

UNIV KYOTO

发明人：SATO TORU;KAMIO KAZUNORI

分类号：H01Q3/26;G01S7/02;G01S13/95;(IPC1-7):H01Q3/26

主分类号：H01Q3/26

摘要：<p><P>PROBLEM TO BE SOLVED: To provide new techniques which remove unwanted waves and take out only a desired signal by effectively suppressing a side lobe caused by a disturbing wave even when errors occur in a coming direction of a desired signal component due to a change in electric wave environments. <P>SOLUTION: Four auxiliary arrays 21 to 24 are arranged at uniform intervals around a main array 11 to constitute an adaptive antenna. On a basis of the DCMP method, the amplitude and the phase of a main output signal including desired signal components from the main array 11 and the auxiliary arrays 21 to 24 are controlled to minimize the output power of the main output signal. Then, amplitudes and phases of output signals from auxiliary arrays 21 to 24 are controlled so that the output power of the output signal may be a side lobe level of the main array 11 or lower. <P>COPYRIGHT: (C)2004,JPO</p>

BRANCHING SYSTEM OF COMMUNICATION TERMINAL DEVICE

MIXING VALVE

VANE PUMP OR MOTOR

OIL FEEDING DEVICE FOR HORIZONTAL COMPRESSOR

ELECTROMAGNETIC FUEL INJECTION VALVE

BOILING AND COOLING APPARATUS FOR ENGINE

BLAST DEVICE FOR AUTOMOBILE

LOADING TRUCK

BRAKE UNIT OF AXIAL AIR GAP TYPE INDUCTION MOTOR

UNDERWATER MOTOR

AIR CORE TYPE DC MOTOR

MANUFACTURE OF SURFACE ACOUSTIC WAVE DEVICE

SEMICONDUCTOR PHOTODETECTOR

SEMICONDUCTOR INTEGRATED CIRCUIT

FLATTENING METHOD OF INSULATING FILM

MANUFACTURE OF SEMICONDUCTOR DEVICE

SCANNING ELECTRON MICROSCOPE

RECTILINEAR SHIFTING DEVICE

TRANSMISSION CONTROL SYSTEM

METHOD OF CONTROLLING FUEL SUPPLY AFTER STARTING OF INTERNAL-COMBUSTION ENGINE