RADAR DEVICE AND TRANSMISSION PROCESSING METHOD OF RADAR DEVICE

• Main Author: MATSUMOTO TOSHIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 16.05.2019
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

To provide technology with which it is possible to shorten the transmission time of a beam for acquiring target information while suppressing a reduction in angle-measurement performance.SOLUTION: The radar device comprises: a signal generation unit for generating a transmit signal; an output unit for outputting a transmit wave for each prescribed angle on the basis of the transmit signal; a receive unit for receiving a reflected wave of the transmit wave that is reflected by a target; and a derivation unit for deriving information regarding the target on the basis of a received signal relating to the reflected wave. The signal generation unit generates a first transmit signal in plurality, with a prescribed free-running time provided, which is the transmit signal relating to the transmit wave outputted at a first angle and which includes at least one modulating signal, and generates a second transmit signal during the free-running time which is the transmit signal relating to the transmit wave outputted at a second angle different from the first angle and which includes at least one modulating signal.SELECTED DRAWING: Figure 4 【課題】測角性能の低下を抑制しつつ、物標情報を取得するためのビームの送信時間を短縮することができる技術を提供する。【解決手段】レーダ装置は、送信信号を生成する信号生成部と、前記送信信号に基づき送信波を所定角度ごとに出力する出力部と、前記送信波が物標で反射された反射波を受信する受信部と、前記反射波に関する受信信号に基づき前記物標の情報を導出する導出部と、を備える。前記信号生成部は、第１角度に出力される前記送信波に関する前記送信信号であって少なくとも１つの変調信号を含む第１送信信号を、所定の空走時間を設けて複数生成し、前記第１角度とは異なる第２角度に出力される前記送信波に関する前記送信信号であって少なくとも１つの変調信号を含む第２送信信号を、前記空走時間の間に生成する。【選択図】図４