JP2001091638A5 - Radar device and transmission / reception switching method - Google Patents
Radar device and transmission / reception switching method Download PDFInfo
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- JP2001091638A5 JP2001091638A5 JP1999265896A JP26589699A JP2001091638A5 JP 2001091638 A5 JP2001091638 A5 JP 2001091638A5 JP 1999265896 A JP1999265896 A JP 1999265896A JP 26589699 A JP26589699 A JP 26589699A JP 2001091638 A5 JP2001091638 A5 JP 2001091638A5
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Description
【特許請求の範囲】
【請求項１】 アンテナに送信波を供給する送信手段と、
前記アンテナで受信された受信波を処理する受信手段と、
前記送信手段から前記アンテナへの送信波の供給を接断する送信制御信号ならびに前記送信制御信号の反転信号である前記アンテナから前記受信手段への受信波の供給を接断する受信制御信号を発生する制御手段と、を具備するレーダ装置であって、
前記制御手段が、前記送信制御信号及び前記受信制御信号の中の一方の制御信号が状態遷移を完了するまで他方の制御信号の状態遷移を第１の遅延時間だけ遅延させる第１の遅延手段を含むレーダ装置。
【請求項２】 前記制御手段が、前記送信制御信号及び前記受信制御信号の中の他方の制御信号が状態遷移を完了するまで一方の制御信号の状態遷移を第２の遅延時間だけ遅延させる第２の遅延手段をさらに含む請求項１に記載のレーダ装置。
【請求項３】 アンテナに送信波を供給する送信手段と、
前記アンテナで受信された受信波を処理する受信手段と、
前記送信手段から前記アンテナへの送信波の供給を所定の遷移時間で接断する送信制御信号ならびに前記送信制御信号の反転信号である前記アンテナから前記受信手段への受信波の供給を前記所定の遷移時間で接断する受信制御信号を発生する制御手段と、を具備するレーダ装置であって、
前記制御手段が、前記送信制御信号及び前記受信制御信号の中の一方の制御信号の状態遷移時間を前記所定の遷移時間より短い第１の遷移時間に短縮する第１の遷移時間短縮手段を含むレーダ装置。
【請求項４】 前記制御手段が、前記送信制御信号及び前記受信制御信号の中の他方の制御信号の状態遷移時間を前記所定の遷移時間より短い第２の遷移時間に短縮する第２の遷移時間短縮手段をさらに含む請求項３に記載のレーダ装置。
【請求項５】 アンテナに送信波を供給する送信手段と、
前記アンテナで受信された受信波を処理する受信手段と、
前記送信手段から前記アンテナへの送信波の供給を接断する送信制御信号ならびに前記送信制御信号の反転信号である前記アンテナから前記受信手段への受信波の供給を接断する受信制御信号を発生する制御手段と、を具備するレーダ装置であって、
前記制御手段が、
前記送信制御信号及び前記受信制御信号の中の一方の制御信号が状態遷移を完了するまで他方の制御信号の状態遷移を第１の遅延時間だけ遅延させる第１の遅延手段と、
前記送信制御信号及び前記受信制御信号の中の一方の制御信号の状態遷移時間を前記第１の遅延時間より短時間である第１の遷移時間に短縮する第１の遷移時間短縮手段とを含むレーダ装置。
【請求項６】 アンテナに送信波を供給する送信手段と、
前記アンテナで受信された受信波を処理する受信手段と、
前記送信手段から前記アンテナへの送信波の供給を接断する送信制御信号ならびに前記送信制御信号の反転信号である前記アンテナから前記受信手段への受信波の供給を接断する受信制御信号を発生する制御手段と、を具備するレーダ装置であって、
前記制御手段が、
前記送信制御信号及び前記受信制御信号の中の他方の制御信号がオフ状態への遷移を完了するまで一方の制御信号の状態遷移を第２の遅延時間だけ遅延させる第２の遅延手段と、
前記送信制御信号及び前記受信制御信号の中の他方の制御信号の状態遷移時間を前記第２の遅延時間より短時間である第２の遷移時間に短縮する第２の遷移時間短縮手段とを含むレーダ装置。
【請求項７】 アンテナに送信波を供給する送信手段と、
前記アンテナで受信された受信波を処理する受信手段と、
前記送信手段から前記アンテナへの送信波の供給を接断する送信制御信号ならびに前記送信制御信号の反転信号である前記アンテナから前記受信手段への受信波の供給を接断する受信制御信号を発生する制御手段と、を具備するレーダ装置であって、
前記制御手段が、
方形波を発生する方形波発生器と、
前記方形波発生器から発生される方形波に基づき相互に逆位相である第１及び第２の切り換え信号を生成する切り換え信号生成部と、
前記切り換え信号生成部で生成された第１の切り換え信号の状態遷移時間を延長する遷移時間延長回路と、
前記切り換え信号生成部で生成された第２の切り換え信号の前縁で第１の状態に遷移し、前記遷移時間延長回路で遅延された第１の制御信号の後縁で前記第１の状態の反転状態である第２の状態に遷移する送信制御信号を生成する送信制御信号生成部と、
前記遷移時間延長回路で遅延された第１の制御信号の前縁で前記第２の状態に遷移し、前記切り換え信号生成部で生成された第２の切り換え信号の後縁で前記第１の状態に遷移する受信制御信号を生成する受信制御信号生成部と、を含むレーダ装置。
【請求項８】 アンテナに送信波を供給する送信手段と、
前記アンテナで受信された受信波を処理する受信手段と、
前記送信手段から前記アンテナへの送信波の供給を接断する送信制御信号ならびに前記送信制御信号の反転信号である前記アンテナから前記受信手段への受信波の供給を接断する受信制御信号を発生する制御手段と、を具備するレーダ装置であって、
前記制御手段が、
方形波を発生する方形波発生器と、
前記方形波発生器から発生される方形波に基づき相互に逆位相である第１及び第２の切り換え信号を生成する切り換え信号生成部と、
前記切り換え信号生成部で生成された第１の切り換え信号が、第１の状態となった時にその出力である送信制御信号を前記第１の状態にプルアップする送信側プルアップ手段、および前記第１の状態の反転状態である第２の状態となった時にその出力である送信制御信号を前記第２の状態にプルダウンする送信側プルダウン手段と、
前記切り換え信号生成部で生成された第２の切り換え信号が、前記第１の状態となった時にその出力である受信制御信号を前記第１の状態にプルアップする受信側プルアップ手段、および前記第２の状態となった時にその出力である受信制御信号を前記第２の状態に受信側プルダウンするプルダウン手段と、を含むレーダ装置。
【請求項９】 アンテナに送信波を供給する送信手段と、
前記アンテナで受信された受信波を処理する受信手段と、
前記送信手段から前記アンテナへの送信波の供給を接断する送信制御信号ならびに前記送信制御信号の反転信号である前記アンテナから前記受信手段への受信波の供給を接断する受信制御信号を発生する制御手段と、を具備するレーダ装置であって、
前記制御手段が、
方形波を発生する方形波発生器と、
前記方形波発生器から発生される方形波に基づき相互に逆位相である第１及び第２の切り換え信号を生成する切り換え信号生成部と、
前記切り換え信号生成部で生成された第１の切り換え信号の状態遷移時間を延長する遷移時間延長回路と、
前記切り換え信号生成部で生成された第２の切り換え信号の前縁で第１の状態に遷移し、前記遷移時間延長回路で遅延された第１の制御信号の後縁で前記第１の状態の反転状態である第２の状態に遷移する第１の制御信号を生成する第１の制御信号生成部と、
前記遷移時間延長回路で遅延された第１の制御信号の前縁で前記第２の状態に遷移し、前記切り換え信号生成部で生成された第２の切り換え信号の後縁で前記第１の状態に遷移する第２の制御信号を生成する第２の制御信号生成部と、
前記第１の制御信号生成部で生成された第１の切り換え信号が、第１の状態となった時にその出力である送信制御信号を前記遷移時間延長回路による延長時間以内に前記第１の状態にプルアップする送信側プルアップ手段、および前記第１の状態の反転状態である第２の状態となった時にその出力である送信制御信号を前記遷移時間延長回路による延長時間以内に前記第２の状態にプルダウンする送信側プルダウン手段と、
前記第２の制御信号生成部で生成された第２の切り換え信号が、前記第１の状態となった時にその出力である受信制御信号を前記遷移時間延長回路による延長時間以内に前記第１の状態にプルアップする受信側プルアップ手段、および前記第２の状態となった時にその出力である受信制御信号を前記遷移時間延長回路による延長時間以内に前記第２の状態にプルダウンする受信側プルダウン手段と、を含むレーダ装置。
【請求項１０】 １つのアンテナを送受信に共用するレーダ装置において前記アンテナを受信状態又は送信状態に切り換える方法において、
前記アンテナへの送信波の供給を接断する送信制御信号を生成するステップと、
前記アンテナからの受信波の供給を接断する受信制御信号を生成するステップと、
前記送信制御信号及び前記受信制御信号の中の一方の制御信号が状態遷移を完了するまで他方の制御信号の状態遷移を遅延するステップと、
を含む、送受信切り換え方法。
【請求項１１】 １つのアンテナを送受信に共用するレーダ装置において前記アンテナを受信状態又は送信状態に切り換える方法において、
前記アンテナへの送信波の供給を接断する送信制御信号を生成するステップと、
前記アンテナからの受信波の供給を接断する受信制御信号を生成するステップと、
前記送信制御信号及び前記受信制御信号の中の一方の制御信号が状態制御を完了するまで他方の制御信号の状態制御を第１の遅延時間だけ遅延するステップと、
前記送信制御信号及び前記受信制御信号の中の一方の制御信号が状態遷移時間を前記第１の遅延時間より短い時間に短縮するステップと、
を含む、送受信切り換え方法。
[Claims]
[Claim 1] antennaAnd the transmission means to supply the transmission wave to
A receiving means for processing the received wave received by the antenna, and
A transmission control signal that interrupts the supply of the transmitted wave from the transmitting means to the antenna and a reception control signal that interrupts the supply of the received wave from the antenna to the receiving means, which is an inverted signal of the transmission control signal, are generated. A radar device provided with a control means for
A first delay means in which the control means delays the state transition of the other control signal by a first delay time until one of the transmission control signal and the reception control signal completes the state transition. Radar equipment including.
2. The control means delays the state transition of one control signal by a second delay time until the transmission control signal and the other control signal in the reception control signal complete the state transition. The radar device according to claim 1, further comprising the delay means of 2.
3. antennaAnd the transmission means to supply the transmission wave to
A receiving means for processing the received wave received by the antenna, and
The transmission control signal that interrupts the supply of the transmission wave from the transmission means to the antenna at a predetermined transition time and the supply of the reception wave from the antenna to the reception means, which is an inverted signal of the transmission control signal, are supplied to the predetermined reception means. A radar device including a control means for generating a reception control signal that connects and disconnects at a transition time.
The control means includes a first transition time shortening means for shortening the state transition time of one of the transmission control signal and the reception control signal to a first transition time shorter than the predetermined transition time. Radar device.
4. A second transition in which the control means shortens the state transition time of the transmission control signal and the other control signal in the reception control signal to a second transition time shorter than the predetermined transition time. The radar device according to claim 3, further comprising a time saving means.
5. antennaAnd the transmission means to supply the transmission wave to
A receiving means for processing the received wave received by the antenna, and
A transmission control signal that interrupts the supply of the transmitted wave from the transmitting means to the antenna and a reception control signal that interrupts the supply of the received wave from the antenna to the receiving means, which is an inverted signal of the transmission control signal, are generated. A radar device provided with a control means for
The control means
A first delay means that delays the state transition of the other control signal by the first delay time until one of the transmission control signal and the reception control signal completes the state transition.
The first transition time shortening means for shortening the state transition time of the transmission control signal and one of the reception control signals to the first transition time, which is shorter than the first delay time, is included. Radar device.
6. antennaAnd the transmission means to supply the transmission wave to
A receiving means for processing the received wave received by the antenna, and
A transmission control signal that interrupts the supply of the transmitted wave from the transmitting means to the antenna and a reception control signal that interrupts the supply of the received wave from the antenna to the receiving means, which is an inverted signal of the transmission control signal, are generated. A radar device provided with a control means for
The control means
A second delay means that delays the state transition of one control signal by a second delay time until the transmission control signal and the other control signal in the reception control signal complete the transition to the off state.
A second transition time shortening means for shortening the state transition time of the transmission control signal and the other control signal in the reception control signal to a second transition time shorter than the second delay time is included. Radar device.
7. antennaAnd the transmission means to supply the transmission wave to
A receiving means for processing the received wave received by the antenna, and
A transmission control signal that interrupts the supply of the transmitted wave from the transmitting means to the antenna and a reception control signal that interrupts the supply of the received wave from the antenna to the receiving means, which is an inverted signal of the transmission control signal, are generated. A radar device provided with a control means for
The control means
A square wave generator that generates a square wave,
A switching signal generator that generates first and second switching signals that are out of phase with each other based on the square wave generated from the square wave generator.
A transition time extension circuit that extends the state transition time of the first switching signal generated by the switching signal generation unit, and a transition time extension circuit.
The first state is transitioned to the first state at the front edge of the second switching signal generated by the switching signal generation unit, and the first state is transitioned to the trailing edge of the first control signal delayed by the transition time extension circuit. A transmission control signal generator that generates a transmission control signal that transitions to the second state, which is the inverted state,
The first state transitions to the second state at the front edge of the first control signal delayed by the transition time extension circuit, and the first state at the trailing edge of the second switching signal generated by the switching signal generation unit. A radar device including a reception control signal generation unit that generates a reception control signal that transitions to.
8. antennaAnd the transmission means to supply the transmission wave to
A receiving means for processing the received wave received by the antenna, and
A transmission control signal that interrupts the supply of the transmitted wave from the transmitting means to the antenna and a reception control signal that interrupts the supply of the received wave from the antenna to the receiving means, which is an inverted signal of the transmission control signal, are generated. A radar device provided with a control means for
The control means
A square wave generator that generates a square wave,
A switching signal generator that generates first and second switching signals that are out of phase with each other based on the square wave generated from the square wave generator.
The transmission control signal that is the output of the first switching signal generated by the switching signal generation unit when it is in the first state.BeforeThe transmitting side pull-up means that pulls up to the first state, and the transmission control signal that is the output when the second state, which is the inverted state of the first state, is reached.BeforeSender pull-down means to pull down to the second state,
The reception control signal that is the output of the second switching signal generated by the switching signal generation unit when it is in the first state.BeforeThe receiving side pull-up means that pulls up to the first state, and the reception control signal that is the output when the second state is reached.BeforeA radar device including a pull-down means for pulling down the receiving side to the second state.
9. antennaAnd the transmission means to supply the transmission wave to
A receiving means for processing the received wave received by the antenna, and
A transmission control signal that interrupts the supply of the transmitted wave from the transmitting means to the antenna and a reception control signal that interrupts the supply of the received wave from the antenna to the receiving means, which is an inverted signal of the transmission control signal, are generated. A radar device provided with a control means for
The control means
A square wave generator that generates a square wave,
A switching signal generator that generates first and second switching signals that are out of phase with each other based on the square wave generated from the square wave generator.
A transition time extension circuit that extends the state transition time of the first switching signal generated by the switching signal generation unit, and a transition time extension circuit.
The first state is transitioned to the first state at the front edge of the second switching signal generated by the switching signal generation unit, and the first state is transitioned to the trailing edge of the first control signal delayed by the transition time extension circuit. A first control signal generation unit that generates a first control signal that transitions to a second state that is an inverted state,
The first state transitions to the second state at the front edge of the first control signal delayed by the transition time extension circuit, and the first state at the trailing edge of the second switching signal generated by the switching signal generation unit. A second control signal generator that generates a second control signal that transitions to
When the first switching signal generated by the first control signal generation unit is in the first state, the transmission control signal, which is the output thereof, is extended within the extension time by the transition time extension circuit.BeforeThe transmission side pull-up means that pulls up to the first state, and the transmission control signal that is the output when the second state, which is the inverted state of the first state, is extended by the transition time extension circuit. WithinBeforeSender pull-down means to pull down to the second state,
When the second switching signal generated by the second control signal generation unit is in the first state, the reception control signal that is the output thereof is within the extension time by the transition time extension circuit.BeforeThe receiving side pull-up means that pulls up to the first state, and the reception control signal that is the output when the second state is reached are within the extension time by the transition time extension circuit.BeforeA radar device including a receiving side pull-down means for pulling down to the second state.
10. In a method of switching the antenna to a reception state or a transmission state in a radar device that shares one antenna for transmission and reception.
A step of generating a transmission control signal that interrupts the supply of the transmitted wave to the antenna, and
A step of generating a reception control signal that interrupts the supply of the received wave from the antenna, and
A step of delaying the state transition of the other control signal until one of the transmission control signal and the reception control signal completes the state transition.
Transmission / reception switching method including.
11. In a method of switching the antenna to a reception state or a transmission state in a radar device that shares one antenna for transmission and reception.
A step of generating a transmission control signal that interrupts the supply of the transmitted wave to the antenna, and
A step of generating a reception control signal that interrupts the supply of the received wave from the antenna, and
A step of delaying the state control of the other control signal by a first delay time until one of the transmission control signal and the reception control signal completes the state control.
A step in which the transmission control signal and one of the reception control signals shorten the state transition time to a time shorter than the first delay time.
Transmission / reception switching method including.
【０００１】
【発明の属する技術分野】
本発明はレーダ装置及び送受信切り換え方法に係わり、特に１つのアンテナを送受信に共用するレーダ装置と、アンテナの送受信を切り換える方法に関する。
[0001]
[Technical field to which the invention belongs]
The present invention relates to a radar device and a transmission / reception switching method , and more particularly to a radar device sharing one antenna for transmission / reception and a method of switching between transmission / reception of an antenna.
【００１５】
【課題を解決するための手段】
第１の発明に係るレーダ装置は、アンテナに送信波を供給する送信手段と、アンテナで受信された受信波を処理する受信手段と、送信手段からアンテナへの送信波の供給を接断する送信制御信号ならびに送信制御信号の反転信号であるアンテナから受信手段への受信波の供給を接断する受信制御信号を発生する制御手段と、を具備するレーダ装置であって、制御手段が、送信制御信号及び受信制御信号の中の一方の制御信号がオフ状態への遷移を完了するまで他方の制御信号の状態遷移を第１の遅延時間だけ遅延させる第１の遅延手段を含む。
0015.
[Means for solving problems]
The radar apparatus according to the first invention clutching receiving means, the supply of the transmission wave from the transmitting means to the antenna for processing and transmitting means for supplying transmission wave to the antenna, the received wave received by the antenna transmission A radar device including a control signal and a control means for generating a reception control signal for interrupting the supply of a received wave from an antenna, which is an inverted signal of a transmission control signal, to the receiving means, and the control means controls transmission. It includes a first delay means that delays the state transition of the other control signal by a first delay time until one of the signal and reception control signals completes the transition to the off state.
第５の発明に係るレーダ装置は、アンテナに送信波を供給する送信手段と、アンテナで受信された受信波を処理する受信手段と、送信手段からアンテナへの送信波の供給を接断する送信制御信号ならびに送信制御信号の反転信号であるアンテナから受信手段への受信波の供給を接断する受信制御信号を発生する制御手段と、を具備するレーダ装置であって、制御手段が、送信制御信号及び受信制御信号の中の一方の制御信号が状態遷移を完了するまで他方の制御信号の状態遷移を第１の遅延時間だけ遅延させる第１の遅延手段と、送信制御信号及び受信制御信号の中の一方の制御信号の状態遷移時間を第１の遅延時間より短時間である第１の遷移時間に短縮する第１の遷移時間短縮手段とを含む。 The radar apparatus according to the fifth invention clutching receiving means, the supply of the transmission wave from the transmitting means to the antenna for processing and transmitting means for supplying transmission wave to the antenna, the received wave received by the antenna transmission A radar device including a control signal and a control means for generating a reception control signal for interrupting the supply of a received wave from an antenna which is an inverted signal of the transmission control signal to the receiving means, and the control means controls transmission. A first delay means that delays the state transition of the other control signal by the first delay time until one of the signals and the reception control signal completes the state transition, and the transmission control signal and the reception control signal. It includes a first transition time shortening means for shortening the state transition time of one of the control signals to the first transition time, which is shorter than the first delay time.
本発明にあっては、送信制御信号及び受信制御信号の一方が状態遷移を完了するまでは他方の状態遷移が遅延される。第８の発明に係るレーダ装置は、制御手段が、方形波を発生する方形波発生器と、方形波発生器から発生される方形波に基づき相互に逆位相である第１及び第２の切り換え信号を生成する切り換え信号生成部と、切り換え信号生成部で生成された第１の切り換え信号が第１の状態となった時にその出力である送信制御信号を第１の状態にプルアップする送信側プルアップ手段および第１の状態の反転状態である第２の状態となった時にその出力である送信制御信号を第２の状態にプルダウンする送信側プルダウン手段と、切り換え信号生成部で生成された第２の切り換え信号が第１の状態となった時にその出力である受信制御信号を第１の状態にプルアップする受信側プルアップ手段および第２の状態となった時にその出力である受信制御信号を第２の状態に受信側プルダウンするプルダウン手段と、を含む。 In the present invention, the state transition of the other state transition is delayed until one of the transmission control signal and the reception control signal completes the state transition. In the radar device according to the eighth invention, the control means switches between a square wave generator that generates a square wave and a first and second switches whose phases are opposite to each other based on the square wave generated from the square wave generator. The transmission side that pulls up the transmission control signal, which is the output of the switching signal generation unit that generates the signal and the first switching signal generated by the switching signal generation unit, to the first state. It is generated by the pull-up means, the transmission side pull-down means that pulls down the transmission control signal that is the output when the second state is the inverted state of the first state, and the switching signal generation unit. The receiving side pull-up means that pulls up the reception control signal that is the output when the second switching signal is in the first state, and the reception control that is the output when the second switching signal is in the second state. It includes a pull-down means for pulling down the signal to the second state on the receiving side.
本発明にあっては、送信制御信号及び受信制御信号の状態反転が強制的に行われる。第９の発明に係るレーダ装置は、制御手段が、方形波を発生する方形波発生器と、方形波発生器から発生される方形波に基づき相互に逆位相である第１及び第２の切り換え信号を生成する切り換え信号生成部と、切り換え信号生成部で生成された第１の切り換え信号の状態遷移時間を延長する遷移時間延長回路と、切り換え信号生成部で生成された第２の切り換え信号の前縁で第１の状態に遷移し遷移時間延長回路で遅延された第１の制御信号の後縁で第１の状態の反転状態である第２の状態に遷移する第１の制御信号を生成する第１の制御信号生成部と、遷移時間延長回路で遅延された第１の制御信号の前縁で第２の状態に遷移し切り換え信号生成部で生成された第２の切り換え信号の後縁で第１の状態に遷移する第２の制御信号を生成する第２の制御信号生成部と、第１の制御信号生成部で生成された第１の切り換え信号が第１の状態となった時にその出力である送信制御信号を遷移時間延長回路による延長時間以内に第１の状態にプルアップする送信側プルアップ手段および第１の状態の反転状態である第２の状態となった時にその出力である送信制御信号を遷移時間延長回路による延長時間以内に第２の状態にプルダウンする送信側プルダウン手段と、第２の制御信号生成部で生成された第２の切り換え信号が第１の状態となった時にその出力である受信制御信号を遷移時間延長回路による延長時間以内に第１の状態にプルアップする受信側プルアップ手段および第２の状態となった時にその出力である受信制御信号を遷移時間延長回路による延長時間以内に第２の状態にプルダウンする受信側プルダウン手段と、を含む。 In the present invention, the state inversion of the transmission control signal and the reception control signal is forcibly performed. In the radar device according to the ninth invention, the control means switches between a square wave generator that generates a square wave and a first and second switches whose phases are opposite to each other based on the square wave generated from the square wave generator. A switching signal generation unit that generates a signal, a transition time extension circuit that extends the state transition time of the first switching signal generated by the switching signal generation unit, and a second switching signal generated by the switching signal generation unit. Generates a first control signal that transitions to the first state at the front edge and transitions to the second state, which is the inverted state of the first state, at the trailing edge of the first control signal delayed by the transition time extension circuit. The first control signal generation unit and the trailing edge of the second switching signal generated by the switching signal generation unit transition to the second state at the front edge of the first control signal delayed by the transition time extension circuit. When the second control signal generation unit that generates the second control signal that transitions to the first state and the first switching signal generated by the first control signal generation unit are in the first state. The transmission side pull-up means that pulls up the transmission control signal, which is the output, to the first state within the extension time by the transition time extension circuit, and the output when the second state, which is the inverted state of the first state, is reached. The transmission side pull-down means for pulling down the transmission control signal, which is, to the second state within the extension time by the transition time extension circuit, and the second switching signal generated by the second control signal generation unit are the first state. The receiving side pull-up means that pulls up the reception control signal that is the output when it becomes the first state within the extension time by the transition time extension circuit, and the reception control signal that is the output when it becomes the second state. The receiving side pull-down means for pulling down to the second state within the extension time by the transition time extension circuit is included.
本発明にあっては、送信制御信号及び受信制御信号の一方が状態遷移を完了するまでは他方の状態遷移が遅延されると共に、送信制御信号及び受信制御信号の状態反転が強制的に行われる。
第１０の発明に係るレーダ装置における送受信切り換え方法は、アンテナへの送信波の供給を接断する送信制御信号を生成するステップと、アンテナからの受信波の供給を接断する受信制御信号を生成するステップと、送信制御信号及び受信制御信号の中の一方の制御信号が状態遷移を完了するまで他方の制御信号の状態遷移を遅延するステップと、を含む。
In the present invention, the state transition of the other state transition is delayed until one of the transmission control signal and the reception control signal completes the state transition, and the state inversion of the transmission control signal and the reception control signal is forcibly performed. ..
The transmission / reception switching method in the radar device according to the tenth invention includes a step of generating a transmission control signal that interrupts the supply of the transmitted wave to the antenna and a reception control signal that interrupts the supply of the received wave from the antenna. A step of delaying the state transition of the other control signal until one of the transmission control signal and the reception control signal completes the state transition .
第１１の発明に係るレーダ装置における送受信切り換え方法は、アンテナへの送信波の供給を接断する送信制御信号を生成するステップと、アンテナからの受信波の供給を接断する受信制御信号を生成するステップと、送信制御信号及び受信制御信号の中の一方の制御信号が状態制御を完了するまで他方の制御信号の状態制御を第１の遅延時間だけ遅延するステップと、送信制御信号及び受信制御信号の中の一方の制御信号が状態遷移時間を第１の遅延時間より短い時間に短縮するステップと、を含む。 The transmission / reception switching method in the radar device according to the eleventh invention includes a step of generating a transmission control signal that interrupts the supply of the transmitted wave to the antenna and a reception control signal that interrupts the supply of the received wave from the antenna. A step of delaying the state control of the other control signal by the first delay time until one of the transmission control signals and the reception control signal completes the state control, and a transmission control signal and reception control. One of the control signals in the signal includes a step of reducing the state transition time to a time shorter than the first delay time .
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| JP26589699A JP4390325B2 (en) | 1999-09-20 | 1999-09-20 | Radar apparatus and transmission / reception switching method |
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| JP26589699A JP4390325B2 (en) | 1999-09-20 | 1999-09-20 | Radar apparatus and transmission / reception switching method |
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| JP4390325B2 JP4390325B2 (en) | 2009-12-24 |
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