| 摘要 |
PROBLEM TO BE SOLVED: To accurately eliminate a receiving failure due to delay to improve reception quality by bending linear conductive material, making it have directivity by utilizing conductive material base plate and synthesizing estimated delay quantity with an input signal when demodulated. SOLUTION: Bent linear conductive material is arranged parallelly and adjacently to a conductive material base plate such as the body of a car, and an installation area is and directivity gain is also improved by grounding one end part of a power feeder terminal to the base plate to form an antenna. An inputting means 9001 of a receiver converts an inputted radio wave into an electric signal, a synthesizing means 9003 synthesizes it with a signal delayed by prescribed time, and a receiving means 9004 and a demodulating means 9005 demodulate it according to prescribed processing. In such a case, a synthetic controlling means 9006 controls a delaying means 9002 and the means 9003 based on a delay wave estimated by a delay wave estimating means 9007 from demodulation information based on a pilot signal of a received wave. It also finds delay information from position and speed information of a vehicle information detecting means 9009 and controls synthetic gain and time of a delay signal. |
