JPH0285461U

JPH0285461U -

Info

Publication number: JPH0285461U
Application number: JP16445988U
Authority: JP
Priority date: 1988-12-21
Filing date: 1988-12-21
Publication date: 1990-07-04
Anticipated expiration: 2003-12-21
Also published as: JPH063416Y2

Description

[Brief explanation of drawings]

第１図は、この考案の実施例であるＲＦドプラ
・シミユレータを示す概略構成図、第２図は、上
記実施例の詳細な例示図、第３図は、上記第２図
における各部の波形例示図、第４図は、典型的な
ドプラ・レーダを示す概略構成図、第５図は、航
空機に搭載されたドプラ・レーダから放射される
マイクロ波ビームの例示図、第６図は、上記第５
図における４本ビームによる動作の説明図、第７
図は、上記第６図の動作説明のための波形例示図
、第８図は、試験対象が航空機に搭載された状態
での試験態様の説明図、第９図は、試験対象が航
空機から取り外された状態での試験態様の説明図
、第１０図は、第１の従来例の概略構成図、第１
１図は、第２の従来例の概略構成図である。１１はドプラ・シミユレーシヨン信号発生器、
１２は９０度移位相器、１３はＳＳＢ変調器、１
４はサーキユレータ、１５はアツテネータ、１６
は送受信用アンテナ、１６Ａは受信用アンテナ、
１６Ｂは送信用アンテナ。なお、図面中での同一
記号が付されたものは、同一または類似のもので
ある。 FIG. 1 is a schematic configuration diagram showing an RF Doppler simulator that is an embodiment of this invention, FIG. 2 is a detailed illustration of the above embodiment, and FIG. 3 is an example of waveforms of each part in FIG. 4 is a schematic configuration diagram showing a typical Doppler radar, FIG. 5 is an example diagram of a microwave beam emitted from a Doppler radar mounted on an aircraft, and FIG. 6 is a diagram showing the above-mentioned Doppler radar. 5
Explanatory diagram of the operation with four beams in the figure, 7th
The figure is a waveform example diagram for explaining the operation of Figure 6 above, Figure 8 is an explanatory diagram of the test mode when the test object is mounted on an aircraft, and Figure 9 is an illustration when the test object is removed from the aircraft. FIG. 10 is an explanatory diagram of the test mode in a state where the
FIG. 1 is a schematic configuration diagram of a second conventional example. 11 is a Doppler simulation signal generator;
12 is a 90 degree phase shifter, 13 is an SSB modulator, 1
4 is a circulator, 15 is an attenuator, 16
is the transmitting and receiving antenna, 16A is the receiving antenna,
16B is a transmitting antenna. Note that items with the same symbols in the drawings are the same or similar items.

Claims

[Claims for Utility Model Registration] A portable electronic modulation type RF Doppler simulator consisting of a Doppler simulation signal generator, a 90-degree phase shifter, an SSB modulator, and a transmitting/receiving antenna, wherein the Doppler・The required modulation is performed between the Doppler simulation signal of a predetermined frequency from the simulation signal generator and the microwave signal of a predetermined frequency from the Doppler radar as the test object, and the resulting signal is used for the test. A portable electronic modulation type RF Doppler simulator characterized by emitting radiation to a target.