JP2900672B2 - Long and short composite pulse power measurement device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission power measuring apparatus for a radar apparatus using a long and short composite pulse, and more particularly to a long and short composite pulse power measuring circuit for measuring the transmission power of a long or short pulse.

[0002]

2. Description of the Related Art A conventional long / short composite pulse power measuring apparatus is:
A measuring circuit for measuring the transmission power branched from the waveguide system of the radar device using the long and short composite pulses is provided, and the measuring circuit measures both the long pulse and the short pulse simultaneously.

[0003]

The conventional long-short composite pulse power measuring apparatus has a problem that it is impossible to individually measure the transmission power of a long pulse or a short pulse.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a long and short composite pulse power measuring apparatus capable of individually measuring long and short pulse transmission powers.

[0005]

In order to achieve the above object, a long and short composite pulse power measuring apparatus according to the present invention comprises a measuring circuit for measuring a transmission power of a waveguide system of a radar apparatus using a long and short composite pulse. In the long-short composite pulse power measuring device, a configuration is provided that includes a power selection unit that selects one of the long pulse power and the short pulse power among the transmission power branched from the waveguide system and sends the selected power to the measurement circuit. is there.

Further, in a long and short composite pulse power measuring apparatus provided with a measuring circuit for measuring a transmission power of a waveguide system of a radar apparatus using a long and short composite pulse, a long and short pulse selection for transmitting a selection signal for selecting a long and short pulse is provided. A switch, a signal conversion circuit that inverts or passes the long / short pulse identification signal in accordance with a selection signal from the long / short pulse selection switch, and an amplifier that amplifies the conversion identification signal converted by the signal conversion circuit to a predetermined value to be a drive signal And a diode switch that selects one of long pulse power and short pulse power among transmission power branched from the waveguide system by a drive signal from an amplifier and sends the selected power to the measurement circuit. is there.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram showing a long and short composite pulse power measuring device according to one embodiment of the present invention, and FIG. 2 is a diagram for explaining the operation thereof.

In FIG. 1, a radar transceiver 1, a waveguide system 2, and a directional coupler 3 are systems to be measured connected to the measuring apparatus of the present embodiment. The transmission power 4 branched from the waveguide system 2 is composed of long pulses and short pulses as shown in FIG.

In the long / short pulse power measuring apparatus according to the embodiment, 6 is a long / short pulse selection switch for transmitting a long / short pulse selection signal 7 for selecting a long / short pulse, and 8 is a long / short pulse selection signal 7 from the long / short pulse selection switch 6. This is a signal conversion circuit that inverts the long / short pulse identification signal from the radar transmitting / receiving device 1 or allows the signal to pass as it is. This signal conversion circuit 8 is constituted by an exclusive OR circuit.

An amplifier 10 amplifies the conversion identification signal 9 converted by the signal conversion circuit 8 to a predetermined value for driving the diode switch 12. The diode switch 12 selects one of the long pulse power and the short pulse power based on the drive signal 11 amplified by the amplifier 10 and sends the branched transmission power 4 to a measurement circuit (not shown). .

Therefore, according to the long and short composite pulse power measuring apparatus, the long and short pulse identification signal 5 from the radar transmitting and receiving apparatus 1 is a gate signal for selecting a long or short pulse as shown in FIG. A long / short pulse selection signal 7 is obtained by a selection switch 6, and a long / short pulse identification signal 5 is inverted or used as it is by a signal conversion circuit 8 constituted by an exclusive-OR circuit.

FIG. 2 shows a case where the conversion is inverted, and a conversion identification signal 9 is obtained. This signal is sent to amplifier 1
The drive signal 11 for driving the diode switch 12 is amplified by 0 to drive the diode switch 12. The diode switch 12 selects the transmission power 4 and
The selected pulse transmission power 13 is obtained. FIG. 2 shows drive signal 1
1 shows a case where a long pulse is selected.

[0013]

As described above, according to the long / short composite pulse power measuring apparatus of the present invention, a long pulse or a short pulse can be selected, so that the transmission power of each pulse can be selected and measured. Have.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a long and short composite pulse power measuring apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an operation example of the long and short composite pulse power measuring device according to the embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 radar transmitting and receiving apparatus 2 waveguide 3 directional coupler 4 transmission power 5 long / short pulse identification signal 6 long / short pulse selection switch 7 long / short pulse selection signal 8 signal conversion circuit 9 conversion identification signal 10 amplifier 11 drive signal 12 diode switch 13 selection pulse Transmission power

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G01S 7/282 G01S 7/40

Claims (2)

(57) [Claims] 1. A long-short composite pulse power measuring device comprising a measuring circuit for measuring a transmission power of a waveguide system of a radar device using a long-short composite pulse, wherein the transmission power branched from the waveguide system is measured. A long / short composite pulse power measuring device comprising: a power selecting means for selecting any one of a long pulse power and a short pulse power and transmitting the selected power to the measuring circuit. 2. A long / short pulse selection apparatus for transmitting a selection signal for selecting a long / short pulse in a long / short composite pulse power measurement apparatus including a measurement circuit for measuring transmission power of a waveguide system of a radar apparatus using a long / short composite pulse. A switch, a signal conversion circuit that inverts or passes the long / short pulse identification signal in accordance with a selection signal from the long / short pulse selection switch, and an amplifier that amplifies the conversion identification signal converted by the signal conversion circuit to a predetermined value to be a drive signal And a diode switch that selects one of long pulse power and short pulse power among transmission power branched from the waveguide system by a drive signal from an amplifier and sends the selected power to the measurement circuit. Long and short composite pulse power measurement device.