JP2013195156A - Rader system and radar detection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rader system and a radar detection method which are capable of switching a plurality of modes in a moment.SOLUTION: A rader system 10 includes: a type signal generation part 20 which has a plurality of type signal generators corresponding to a plurality of respective modes and outputs, as a transmission signal, a type signal generated using the type signal generator; a power source supply part 30 which supplies electric power on the basis of a transmission period and a unit power value that are set for the mode operated; a transmission signal amplification part 40 which amplifies the transmission signal generated using the supplied electric power; a transmitting/receiving part 50 which transmits the amplified transmission signal to the exterior and receives a reception signal that is a reflection of the transmission signal transmitted in a radar mode; and a reception signal processing part 60 which processes the received reception signal.

Description

  The present invention relates to a radar apparatus and a radar detection method for emitting a transmission signal for detecting a target, and more particularly to a radar apparatus and a radar detection method for switching and outputting a transmission signal for detection and a transmission signal other than a detection purpose.

  A radar device is used for detecting a target object and for obstructing an electronic device of a partner. For example, Patent Documents 1 and 2 disclose radar devices that emit both detection signals and interference signals using a single transmitter. The radar devices disclosed in Patent Documents 1 and 2 emit a transmission signal having a low output and a long pulse width in the detection mode, and emit a transmission signal having a high output and a short pulse width in the interference mode.

JP 2011-153878 A JP 2009-244028 A

  When using a radar apparatus mainly used for detecting a target and outputting a transmission signal for a purpose other than detection, it is desirable to switch between the detection mode and the other mode as soon as possible.

  An object of the present invention is to provide a radar apparatus and a radar detection method capable of instantaneously switching between a plurality of modes.

  In order to achieve the above object, a radar apparatus according to the present invention holds a transmission period and a unit power value set for each of a plurality of modes including a radar mode. The radar apparatus according to the present invention includes a plurality of seed signal generators respectively corresponding to a plurality of modes, and outputs a seed signal generated using the seed signal generator as a transmission signal; A power supply unit that supplies power based on a transmission period and a unit power value set in an operating mode, a transmission signal amplification unit that amplifies a transmission signal generated using the supplied power, and an amplified transmission signal And a reception signal processing unit for processing the received reception signal, and a transmission / reception unit that receives the reception signal in which the transmission signal emitted in the radar mode is reflected.

  In order to achieve the above object, a radar detection method according to the present invention maintains a transmission period and a unit power value set for each of a plurality of modes including a radar mode, and generates a plurality of seed signals corresponding to each of the plurality of modes. A seed signal is generated using a device, the generated seed signal is output as a transmission signal, power is supplied based on a transmission period and a unit power value set in an operation mode, and the supplied power is used. The generated transmission signal is amplified, the amplified transmission signal is emitted to the external space, the reception signal reflected from the transmission signal emitted in the radar mode is received, and the received reception signal is processed.

  The radar apparatus and the radar detection method according to the present invention can instantaneously switch between a plurality of modes.

1 is a block configuration diagram of a radar apparatus 10 according to a first embodiment of the present invention. It is a block block diagram of the active phased array antenna apparatus 100 which concerns on the 2nd Embodiment of this invention. It is a block block diagram of the excitation part 300 which concerns on the 2nd Embodiment of this invention. It is an example of the excitation signal which the exciter 310,320,330 which concerns on the 2nd Embodiment of this invention produced | generated. It is a block block diagram of the transmission / reception part 500 which concerns on the 2nd Embodiment of this invention. It is an example of a time chart of transmission / reception timing, power supply voltage, transmission output power, transmission pulse width, and transmission pulse repetition period in each operation mode. It is a block block diagram of the active phased array antenna apparatus 100B which concerns on the 3rd Embodiment of this invention. It is a block block diagram of the transmission / reception part 500B and the high voltage | pressure control part 800B which concern on the 3rd Embodiment of this invention.

(First embodiment)
A radar apparatus according to the first embodiment will be described. A block diagram of a radar apparatus according to the present embodiment is shown in FIG. The radar apparatus 10 according to the present embodiment holds transmission periods and unit power values set for each of a plurality of modes including a radar mode, and as shown in FIG. 1, a seed signal generation unit 20, a power supply unit 30, A transmission signal amplification unit 40, a transmission / reception unit 50, and a reception signal processing unit 60 are provided.

  In the present embodiment, the radar apparatus 10 holds a transmission period and a unit power value for each radar mode, disturbance mode, and deception mode. The radar mode is a mode in which the target is detected by analyzing the reflected signal that is returned from the reflected microwave reflected by the target. The jamming mode is a mode in which a high-power microwave is irradiated to cause a malfunction or failure of the other electronic device.For example, a high-power microwave is irradiated to a missile that has been launched, and the missile is turned off. Including capacity building. The deception mode is the other party's radar function by analyzing the other party's radar microwaves and including the reflected wave reflected to the other party to deceive the other party, or by irradiating the microwave with broadband modulation. Is a mode for lowering.

  Returning to the description of FIG. In FIG. 1, the seed signal generation unit 20 includes the same number of seed signal generators as the number of operating modes. The seed signal generation unit 20 outputs the seed signal generated by the seed signal generator corresponding to the operating mode to the transmission signal amplification unit 40 as a transmission signal. In this embodiment, the seed signal generation unit 20 includes three seed signal generators 21, 22, and 23. The seed signal generator 21 generates a seed signal for radar mode when operating in the radar mode, and generates a seed signal when operating in the disturbance mode. The device 22 generates the disturbance mode seed signal, and the seed signal generator 23 generates the deception mode seed signal during the deception mode operation, and outputs the generated seed signal to the transmission signal amplifier 40 as a transmission signal.

  The power supply unit 30 supplies power to the transmission signal amplification unit 40 based on the transmission period and unit power value held by the radar apparatus 10. For example, when operating in the radar mode, the power supply unit 30 supplies the radar mode power supply PN to the transmission signal amplifier 40 during the transmission time TN associated with the radar mode. When the interference mode operates, the power supply unit 30 supplies the interference mode power supply PH to the transmission signal amplification unit 40 during the transmission time TH associated with the interference mode. Further, when the deception mode operates, the power supply unit 30 supplies the deception mode power source PE to the transmission signal amplification unit 40 during the transmission time TE associated with the deception mode.

  The transmission signal amplification unit 40 is input from the seed signal generation unit 20 using the power supply (PN, PH, or PE) supplied from the power supply unit 30 during the transmission period (TN, TH, or TE) of the operating mode. The amplified transmission signal is amplified, and the amplified transmission signal is output to the transmission / reception unit 50.

  The transmission / reception unit 50 switches between transmission and reception or OFF operation based on the transmission period for each operation mode held by the radar apparatus 10. For example, when operating in the radar mode, the transmission / reception unit 50 emits the transmission signal input from the transmission signal amplification unit 40 to the external space during the transmission time TN, and emits it for a predetermined time after the transmission time TN has elapsed. The reception signal reflected from the transmission signal is received and output to the reception signal processing unit 60. Further, when the disturbance mode is operated, the transmission signal input from the transmission signal amplifier 40 is emitted to the external space during the transmission time TH, and is turned off for a predetermined time after the transmission time TH has elapsed. Further, when the deception mode operation is performed, during the transmission time TE, the transmission signal input from the transmission signal amplifying unit 40 is emitted to the external space, and is in an OFF state for a predetermined time after the transmission time TE has elapsed.

  The reception signal processing unit 60 processes the reception signal input from the transmission / reception unit 50. For example, the received signal processing unit 60 analyzes the received signal and outputs an analysis result such as positioning and track tracking to a display device (not shown).

  The radar apparatus 10 described above generates seed signals by the seed signal generators 21, 22, and 23 corresponding to the modes to be operated by the seed signal generation unit 20, and unit power preset for each mode by the transmission signal amplification unit 40. After optimal amplification based on the value, the transmission signal is emitted to the external space. Since the generation and amplification of the seed signal according to the mode can be processed separately, it is possible to instantaneously switch to the transmission signal of the desired mode and emit the transmission signal related to the desired mode. Therefore, when the detection signal for the radar mode is emitted, it is instantaneously switched to the emission of a powerful microwave for interference or a microwave for deception, and the interference signal or deception signal is emitted again by returning to the radar mode. The effect can be confirmed.

  Here, it is desirable that the radar apparatus 10 further includes a timing control unit that counts a transmission period and outputs a timing signal. In this case, the seed signal generation unit 20 and the power supply unit 30 determine the seed signal to be generated and the power value supplied to the transmission signal amplification unit 40 more accurately based on the timing signal, and the seed signal and power value of the new mode You can switch to

  In each mode, it is desirable to design so that the product of the transmission period of the operating mode and the unit power value is constant. In this case, the power consumption (unit power value × transmission period) consumed in each mode becomes substantially constant, and the power supply unit 30 can be used in common in each mode.

  Then, by making the transmission period TH in the interference mode shorter than the transmission period TN in the radar mode, it is possible to emit an interference signal having an output larger than that of the radar signal. On the other hand, by making the unit power value in the deception mode smaller than the unit power value in the radar mode, deception signals can be continuously emitted for a longer period than the radar signal.

(Second Embodiment)
A second embodiment will be described. FIG. 2 shows a block configuration diagram of the active phased array antenna apparatus according to the present embodiment. 2, an active phased array antenna apparatus 100 according to the present embodiment includes a beam control unit 200, an excitation unit 300, a distribution unit 400, a plurality of transmission / reception units 500, a combining unit 600, a receiving unit 700, and a power supply unit (not shown). . The power supply unit generates a power supply voltage and supplies the generated power supply voltage to each unit of the active phased array antenna device 100.

  The beam control unit 200 sequentially generates a radar mode operation signal, an interference mode operation signal, and a deception mode operation signal for controlling transmission / reception of various beams at a predetermined timing, and outputs them to the excitation unit 300 and the plurality of transmission / reception units 500. . Note that the beam control unit 200 can switch and output various operation signals based on a user instruction from an input unit (not shown) instead of sequentially generating various operation signals.

  The excitation unit 300 generates an excitation signal based on the operation signal input from the beam control unit 200 and outputs the excitation signal to the distribution unit 400. A block diagram of the excitation unit 300 is shown in FIG. In FIG. 3, the excitation unit 300 includes three exciters 310, 320, 330 and an exciter switch 340. In the present embodiment, the excitation unit 300 generates the radar mode operation excitation signal using the first exciter 310 while receiving the radar mode operation signal from the beam control unit 200. The excitation unit 300 generates the disturbance mode operation excitation signal using the second exciter 320 while receiving the disturbance mode operation signal, and generates the third excitation while receiving the deception mode operation signal. The device 330 is used to generate a deception mode operation excitation signal. The excitation unit 300 selects the exciters 310, 320, and 330 corresponding to the operation signal input from the beam control unit 200 using the exciter switch 340, and the selected exciters 310, 320, and 330 The generated excitation signal is output to distribution section 400.

  An example of the excitation signal generated by the exciters 310, 320, and 330 is shown in FIG. In FIG. 4, a radar mode operation excitation signal and an interference mode operation excitation signal are signals that sweep a narrow band. On the other hand, the deception mode operation excitation signal is a signal modulated into a broadband signal.

  Distribution section 400 distributes the excitation signal input from excitation section 300 and outputs the distributed excitation signal to a plurality of transmission / reception sections 500 simultaneously.

  Each transmitting / receiving unit 500 performs predetermined processing on the excitation signal input from the excitation unit 300 via the distribution unit 400 based on the operation signal input from the beam control unit 200, and transmits the processed excitation signal. It is emitted to the external space as a beam. Also, the transceiver unit 500 processes the received beam received from the external space, and outputs the processed received beam to the combining unit 600 as a received signal. In the present embodiment, the transmission / reception unit 500 receives a reflected signal from the target of the emitted transmission beam as a reception beam. The transceiver unit 500 will be described later.

  The combining unit 600 combines the reception signals input from the plurality of transmission / reception units 500 and outputs the combined signals to the reception unit 700.

  The receiving unit 700 analyzes the received signal input from the transmitting / receiving unit 500 via the synthesizing unit 600 and outputs an analysis result such as positioning and track tracking to an output device (not shown).

  Next, the transmission / reception unit 500 will be described in detail. A block configuration diagram of the transmission / reception unit 500 is shown in FIG. In FIG. 5, the transmission / reception unit 500 includes a switching control circuit 510, a phase shifter 520, a high voltage control circuit 530, a power supply circuit 540, a triple mode traveling wave tube 550, a transmission / reception switch 560, an antenna element 570, and a low noise amplifier 580. .

  The switching control circuit 510 generates a timing control signal for controlling the timing of transmission and reception based on the operation signal input from the beam control unit 200, and the generated timing control signal is transferred to the phase shifter 520 and the transmission / reception switch. To 560.

  The phase shifter 520 adjusts the phase of the excitation signal input from the excitation unit 300 via the distribution unit 400 based on the timing control signal input from the switching control circuit 510 and outputs the adjusted signal to the triple mode traveling wave tube 550. Phase shifter 520 adjusts the phase of the received signal input from low noise amplifier 580 based on the timing control signal, and outputs the result to combining section 600.

  The high voltage control circuit 530 generates a voltage control signal for instructing a voltage to be supplied to the triple mode traveling wave tube 550 based on the operation signal input from the beam control unit 200, and outputs the voltage control signal to the power supply circuit 540. In the present embodiment, the high voltage control circuit 530 generates a radar mode voltage control signal and outputs the radar mode voltage control signal to the power supply circuit 540 while the radar mode operation signal is input from the beam control unit 200. Further, the disturbance mode voltage control signal is generated while the disturbance mode operation signal is input, and the deception mode voltage control signal is generated and output to the power supply circuit 540 while the deception mode operation signal is input.

  The power supply circuit 540 supplies a power supply voltage supplied from a power supply unit (not shown) of the active phased array antenna apparatus 100 to each circuit of the transmission / reception unit 500. In addition, the power supply circuit 540 instantaneously generates a predetermined power supply voltage from the power supply voltage supplied from the power supply unit based on the voltage control signal input from the high voltage control circuit 530 and supplies it to the triple mode traveling wave tube 550. In the present embodiment, the power supply circuit 540 receives the radar mode high voltage VN when the radar mode voltage control signal is input, and the disturbance mode high voltage VH when the disturbance mode voltage control signal is input. When the deception mode voltage control signal is input, the deception mode high voltage VE is instantaneously generated and supplied to the triple mode traveling wave tube 550. The radar mode high voltage VN, the disturbance mode high voltage VH, and the deception mode high voltage VE will be described later.

  Triple mode traveling wave tube 550 amplifies the excitation signal input from phase shifter 520 using the power supply supplied from power supply circuit 540 and outputs the amplified signal to transmission / reception switch 560. In this embodiment, the triple mode traveling wave tube 550 includes three microwave tubes 531, 532, and 533 to which different high-voltage power supplies can be applied. The radar mode high voltage VN is supplied to the microwave tube 531 during the radar mode operation, the interference mode high voltage VH is supplied to the microwave tube 532 during the disturbance mode operation, and the deception mode high voltage VE during the deception mode operation. Is supplied to the microwave tube 533.

  The transmission / reception switch 560 switches the connection with the antenna element 570 to the triple mode traveling wave tube 550 or the low noise amplifier 580 based on the timing control signal input from the switching control circuit 510. The transmission / reception switch 560 outputs the excitation signal input from the triple mode traveling wave tube 550 as a transmission beam to the antenna element 570 at the time of transmission, and the reception beam received from the external space via the antenna element 570 at the time of reception with low noise. Output to amplifier 580.

  The antenna element 570 emits the transmission beam input from the transmission / reception switch 560 to the external space, and emits the reception beam received from the external space to the transmission / reception switch 560. In the present embodiment, the antenna element 570 receives a reflected signal from the target of the emitted transmission beam as a reception beam during the radar mode operation.

  Low noise amplifier 580 amplifies the received beam received from the external space via antenna element 570 and transmission / reception switch 560 with low noise, converts the received beam into a received signal, and outputs the received signal to phase shifter 520.

  Next, the radar mode high voltage VN, the disturbance mode high voltage VH, and the deception mode high voltage VE will be described. In this embodiment, the radar mode high voltage VN, the disturbance mode high voltage VH, and the deception mode high voltage VE are the power consumption during the radar mode operation, the power consumption during the disturbance mode operation, and the power consumption during the deception mode operation. Are set to be substantially the same. Transmission / reception timing, power supply voltage (VN, VH, VE) supplied to triple mode traveling wave tube 550, transmission output power (PN, PH, PE) of transmission / reception unit 500, and transmission pulse width of excitation signal in each operation mode FIG. 6 shows the relationship between (TN1, TH1, TE1) and the transmission pulse repetition period (TN2, TH2, TE2).

  In the radar mode, in FIG. 6, the active phased array antenna apparatus 100 repeats transmission and reception. In the transceiver unit 500, the radar mode high voltage VN is supplied to the microwave tube 531 of the triple mode traveling wave tube 550. The transmission output power of the transmission / reception unit 500 at this time is the transmission output power PN.

Here, when the radar mode high voltage VN is supplied to the triple mode traveling wave tube 550 of the N transmitting / receiving units 500, the power consumption PDN in the radar mode of the active phased array antenna apparatus 100 as a whole is the radar mode power consumption PDN. When the transmission pulse width is TN1, the transmission pulse repetition period is TN2, and the transmission / reception efficiency is EN, it is expressed by Expression (1).
PDN = PN × (TN1 / TN2) × N / EN (W) (1)

Further, the total output of the transmission beams emitted from the N transmitting / receiving units 500 in the radar mode, that is, the combined transmission output PTN of the entire active phased array antenna apparatus 100 is expressed by Expression (2).
PTN = PN × N (W) (2)

  For example, the number of transmission / reception units 500: N = 100, transmission output power of the transmission / reception unit 500: PN = 1 kW, transmission pulse width: TN1 = 1 ms, transmission pulse repetition period: TN2 = 10 ms, transmission / reception efficiency: EN = 50% Then, the combined transmission output power PTN of the active phased array antenna apparatus 100 in the radar mode is 100 kW, and the power consumption PDN is 20 kW.

Next, in the interference mode, the transmission / reception unit 500 supplies the interference mode high voltage VH to the microwave tube 532 of the triple mode traveling wave tube 550. As shown in FIG. 6, the transmission output power of each transmission / reception unit 500 instantaneously increases to the transmission output power PH by supplying the high voltage VH for the interference mode. Then, assuming that the transmission pulse width in the interference mode is TH1 and the transmission pulse repetition period is TH2, the power consumption PDH of the active phased array antenna apparatus 100 in the interference mode is the same as in the above formulas (1) and (2). Is the equation (3), and the combined transmission output PTH is the equation (4).
PDH = PH × (TH1 / TH2) × N / EN (W) (3)
PTH = PH × N (W) (4)

  For example, when N = 100, PH = 10 kW, TH1 = 0.1 ms, TH2 = 10 ms, EN = 50%, the combined transmission output power PTH of the active phased array antenna device 100 in the disturbing mode is 1000 kW, and the power consumption PDH Is 20 kW.

Further, in the case of the deception mode, the transceiver unit 500 supplies the deception mode high voltage VE to the microwave tube 533 of the triple mode traveling wave tube 550. By supplying the high voltage VE for the deception mode, the transmission output power of the transmission / reception unit 500 is instantaneously reduced to the transmission output power PE as shown in FIG. Then, assuming that the transmission pulse width in the deception mode is TE1 and the transmission pulse repetition period is TE2, the power consumption PDE of the active phased array antenna apparatus 100 in the deception mode is the same as in the above formulas (1) and (2). Is the equation (5), and the combined transmission output PTE is the equation (6).
PDE = PE × (TE1 / TE2) × N / EN (W) (5)
PTE = PE × N (W) (6)

  For example, when N = 100, PE = 0.5 kW, TE1 = 2 ms, TE2 = 10 ms, EN = 50%, the combined transmission output power PTE of the active phased array antenna apparatus 100 in the deception mode is 50 kW, and the power consumption PDE Is 20 kW.

  As described above, the active phased array antenna apparatus 100 according to the present embodiment has a constant power consumption (for example, 20 kW) in the entire active phased array antenna apparatus 100 in any of the radar mode, the disturbance mode, and the deception mode. Can be maintained.

  On the other hand, compared to the combined transmission output power in the radar mode (for example, 100 kW), the combined transmission output power PTH (for example, 1000 kW) in the disturbance mode can be sufficiently increased (for example, 10 times). Therefore, a strong interference wave can be emitted in the interference mode.

  Furthermore, the transmission pulse width TE1 (for example, 2 ms) in the deception mode can be made sufficiently long (for example, twice) compared to the transmission pulse width TN1 (for example, 1 ms) in the radar mode. Therefore, deception waves can be emitted for a sufficient period.

  The radar mode high voltage VN, the interference mode high voltage VH, and the deception mode high voltage VE can be appropriately designed according to the power of the outgoing interference wave, the emission time of the deception wave, and the like.

  The active phased array antenna apparatus 100 configured as described above operates as follows. That is, the beam control unit 200 sequentially generates operation signals related to the radar mode, the disturbance mode, and the deception mode at a predetermined timing, and outputs them to the excitation unit 300 and the transmission / reception unit 500.

  The excitation unit 300 generates an excitation signal for radar mode operation, interference mode operation, or deception mode operation based on the operation signal input from the beam control unit 200, and outputs the generated excitation signal to the distribution unit 400. Distribution section 400 distributes the excitation signals input from excitation section 300 into N pieces, and outputs the distributed excitation signals to N transmission / reception sections 500.

  Each of the N transmitting / receiving units 500 adjusts the phase of the excitation signal input from the excitation unit 300 at the time of transmission based on the operation signal input from the beam control unit 200, so that the radar mode high voltage VN and the interference mode high Amplified by the voltage VH or the deception mode high voltage VE, and is emitted to the external space as a transmission beam. Here, the radar mode high voltage VN, the jamming mode high voltage VH, and the deception mode high voltage VE are designed to maintain power consumption of the active phased array antenna apparatus 100 as a whole.

  On the other hand, the transmission / reception unit 500 receives the reflected wave from the target of the emitted transmission beam for radar mode operation as a reception beam during the radar mode operation. The transmission / reception unit 500 amplifies the received reception beam with low noise, converts the received beam into a reception signal, adjusts the phase, and outputs the received signal to the synthesis unit 600.

  The combining unit 600 combines the reception signals input from the N transmitting / receiving units 500 and outputs the combined signals to the receiving unit 700. The receiving unit 700 analyzes the combined signal of the received signals from the N transmitting / receiving units 500 and outputs analysis results such as positioning and track tracking to an output device (not shown).

  As described above, the active phased array antenna apparatus 100 according to the present embodiment is configured such that the power consumption PDN in the radar mode, the power consumption PDH in the disturbance mode, and the power consumption PDE in the deception mode are approximately the same. The power supply voltage supplied to the triple mode traveling wave tube 550 is set to an optimum value in accordance with the power of the outgoing interference wave and the emission time of the deception wave. Since the power consumption of each mode can be made equal, there is no need to provide multiple power sources for each mode, and a common power source is used to perform radar mode operation, powerful jamming mode operation, and deceiving mode operation that deceives the opponent radar. be able to.

  In the active phased array antenna apparatus 100 according to the present embodiment, the radar mode operation, the disturbance mode operation, and the deception mode operation are instantaneously switched by only the operation signal generated by the beam control unit 200, and the phase by the phase shifter 520 is set. Control is performed to perform beam scanning. In this case, for example, the disturbance mode operation or the deception mode operation is performed instantaneously while searching for and tracking the target object during the radar operation, and then immediately returned to the radar mode operation again. The effect can be confirmed.

(Third embodiment)
A third embodiment will be described. FIG. 7 shows a block configuration diagram of the active phased array antenna apparatus according to the present embodiment. In FIG. 7, an active phased array antenna apparatus 100B according to the present embodiment includes a beam control unit 200B, an excitation unit 300B, a distribution unit 400B, a plurality of transmission / reception units 500B, a synthesis unit 600B, a reception unit 700B, a high voltage control unit 800B, and an illustration. Provide a power supply unit that does not. The power supply unit generates a power supply voltage and supplies the generated power supply voltage to each unit of the active phased array antenna device 100B.

  Here, the excitation unit 300B, the distribution unit 400B, the combination unit 600B, and the reception unit 700B function in the same manner as the excitation unit 300, distribution unit 400, combination unit 600, and reception unit 700 described in the second embodiment. Detailed description is omitted.

  The beam control unit 200B sequentially generates a radar mode operation signal, a disturbance mode operation signal, or a deception mode operation signal at a predetermined timing, and outputs the generated signals to the excitation unit 300B, the transmission / reception unit 500B, and the high voltage control unit 800B.

  The high voltage control unit 800B generates a predetermined power supply voltage based on an operation signal input from the beam control unit 200B using a power supply voltage supplied from a power supply unit (not shown), and the generated power supply voltage is transmitted to a plurality of transmission / reception units 500B. To supply.

  Each of the plurality of transmission / reception units 500B performs predetermined processing on the excitation signal input from the excitation unit 300B via the distribution unit 400B using the power supply voltage supplied from the high voltage control unit 800B, and emits the signal to the external space. . Furthermore, the transmitting / receiving unit 500B receives the reflected signal from the target of the transmission beam emitted during the radar mode operation as a reception beam, performs a predetermined process, and outputs the received signal to the synthesis unit 600B.

  FIG. 8 shows a block configuration diagram of the high-voltage control unit 800B and the transmission / reception unit 500B according to the present embodiment. In FIG. 8, a high voltage control unit 800B according to the present embodiment includes a high voltage control circuit 810B and a power supply circuit 820B, and each transmission / reception unit 500B includes a switching control circuit 510B, a phase shifter 520B, a triple mode traveling wave tube 550B, and a transmission / reception switch. 560B, an antenna element 570B, and a low noise amplifier 580B.

  In FIG. 8, the high voltage control circuit 810B of the high voltage control unit 800B generates the radar mode high voltage VN using the power supply circuit 820B while the radar mode operation signal is input from the beam control unit 200B, and performs a plurality of transmission / reception operations. Part 500B. Further, the high voltage control circuit 810B generates a plurality of deception mode high voltages VH while the disturbance mode operation signal is input, and generates a plurality of deception mode high voltages VE while the deception mode operation signal is input. Supplied to the transceiver unit 500B. Here, in the present embodiment, the radar mode high voltage VN, the disturbance mode high voltage VH, and the deception mode high voltage VE are designed such that the power consumption of the entire active phased array antenna device 100B is maintained constant. ing.

  In the plurality of transmission / reception units 500B, the switching control circuit 510B generates a timing control signal based on the operation signal input from the beam control unit 200B and outputs the timing control signal to the phase shifter 520B and the transmission / reception switch 560B.

  Transmission / reception switch 560B connects triple mode traveling wave tube 550B and antenna element 570B at the time of transmission. Then, the phase of the excitation signal input from the excitation unit 300B is adjusted by the phase shifter 520B, and the power (radar mode high voltage VN, disturbance mode high voltage) supplied from the high voltage control unit 800B in the triple mode traveling wave tube 550B. The excitation signal is amplified using VH or the fraud mode high voltage VE), and is emitted to the external space as a transmission beam via the antenna element 570B.

  On the other hand, transmission / reception switch 560B connects low-noise amplifier 580B and antenna element 570B during reception in the radar mode operation. Then, the reflected wave from the target of the transmitted beam for radar mode operation is received as a received beam, amplified by low noise in the low noise amplifier 580B and converted into a received signal, and further phase adjusted in the phase shifter 520B Thereafter, the data is output to the synthesis unit 600B.

  In the present embodiment, the high voltage controller 800B generates a power supply voltage (a radar mode high voltage VN, an interference mode high voltage VH, or a deception mode high voltage VE) based on the operation signal input from the beam controller 200B. The generated power is supplied to the plurality of transmitting / receiving units 500B. By supplying the power supply voltage from one high voltage control unit 800B to the plurality of transmission / reception units 500B, each transmission / reception unit 500B does not need to include a high voltage control circuit and a power supply circuit. Therefore, the cost of the transceiver unit 500B can be reduced, and the transceiver unit 500B can be reduced in size and weight.

  In the above-described embodiment, the high-voltage control unit 800B distributes and supplies the generated power to the plurality of transmission / reception units 500B evenly. However, the present invention is not limited to this. For example, the high-voltage control unit 800B supplies more power supply voltages to several transmission / reception units 500B that emit transmission beams in a predetermined direction, and less to some transmission / reception units 500B that emits transmission beams in another direction. It is also possible to make the total supply amount constant by supplying a power supply voltage. In this case, the transmission output power of the transmission beam in the predetermined direction can be increased, and the transmission pulse width can be increased.

  The present invention is not limited to the above-described embodiment, and design changes and the like within a range not departing from the gist of the present invention are included in the present invention.

DESCRIPTION OF SYMBOLS 10 Radar apparatus 20 Kind signal generation part 30 Power supply part 40 Transmission signal amplification part 50 Transmission / reception part 60 Reception signal processing part 100, 100B Active phased array antenna apparatus 200, 200B Beam control part 300, 300B Excitation part 400, 400B Distribution part 500 , 500B transceiver unit 510, 510B switching control circuit 520, 520B phase shifter 530 high voltage control circuit 540 power supply circuit 550, 550B triple mode traveling wave tube 560, 560B transmission / reception switcher 570, 570B antenna element 580, 580B low noise amplifier 600, 600B synthesis unit 700, 700B reception unit 800B high voltage control unit 810B high voltage control circuit 820B power supply circuit

Claims (10)

Hold the transmission period and unit power value set for each of multiple modes including radar mode,
A seed signal generator that includes a plurality of seed signal generators corresponding to the plurality of modes, and outputs a seed signal generated using the seed signal generator as a transmission signal;
A power supply unit that supplies power based on a transmission period and a unit power value set in a mode to be operated;
A transmission signal amplification unit that amplifies the generated transmission signal using the supplied power supply;
A transmission / reception unit that emits the amplified transmission signal to an external space and receives a reception signal in which the emitted transmission signal is reflected in the radar mode;
A received signal processing unit for processing the received received signal;
A radar apparatus comprising: A timing control unit for outputting a timing signal for counting the transmission period;
The seed signal generation unit, the power supply unit, and the transmission / reception unit switch operations using the timing signal,
The radar apparatus according to claim 1. The radar apparatus according to claim 1, wherein a product of the transmission period and the unit power value set for each mode is constant. The radar apparatus according to claim 1, further comprising a phase adjustment unit that adjusts phases of the transmission signal and the reception signal based on the timing signal. The transmission signal amplification unit and the transmission / reception unit have a plurality of sets,
A distribution unit that distributes the generated transmission signal and outputs the transmission signal to the plurality of transmission signal amplification units;
A combining unit that combines the reception signals received by the plurality of transmission / reception units and outputs the combined signals to the reception signal processing unit;
The radar apparatus according to claim 1, further comprising: The number of the power supply units is the same as the number of the transmission signal amplification units
The power supply unit supplies power to the corresponding transmission signal amplification unit;
The radar apparatus according to claim 5. The number of the power supply units is less than the number of the transmission signal amplification units,
At least one of the power supply units supplies power to two or more of the transmission signal amplification units simultaneously;
The radar apparatus according to claim 5. The power supply unit that supplies power to the two or more transmission signal amplification units simultaneously supplies power of different sizes to the two or more transmission signal amplification units while maintaining a total supply amount constant. 7. The radar device according to 7. The plurality of modes are a radar mode, a jamming mode, and a deception mode;
The transmission signal amplifier is a triple mode traveling wave tube,
The unit power value of the disturbance mode is larger than the unit power value of the radar mode,
The transmission period of the deception mode is longer than the radar mode transmission period,
The radar apparatus according to any one of claims 1 to 8. Hold the transmission period and unit power value set for each of multiple modes including radar mode,
A seed signal is generated using a plurality of seed signal generators corresponding to the plurality of modes, and the generated seed signal is output as a transmission signal.
Supply power based on the transmission period and unit power value set in the mode to operate,
Amplifying the generated transmission signal using the supplied power supply;
Emitting the amplified transmission signal to an external space and receiving the reception signal reflected by the transmitted transmission signal in the radar mode;
Processing the received received signal;
Radar detection method.

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