JPH054067U - Radar equipment - Google Patents
Radar equipmentInfo
- Publication number
- JPH054067U JPH054067U JP2394191U JP2394191U JPH054067U JP H054067 U JPH054067 U JP H054067U JP 2394191 U JP2394191 U JP 2394191U JP 2394191 U JP2394191 U JP 2394191U JP H054067 U JPH054067 U JP H054067U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- frequency
- receiver
- noise
- transmitter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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- Radar Systems Or Details Thereof (AREA)
Abstract
(57)【要約】
【目的】 送信機から伝送線にて送られる基準周波数信
号の近傍雑音を抑圧することを可能とした受信機を有す
るレーダ装置を得る。
【構成】 送信機1から伝送線にて受信機2に送出され
る基準周波数信号を分配器14で信号を分配し、狭帯域
フィルタであるクリスタルフィルタ15により信号の雑
音を抑圧した後、合成器16で信号を合成し逓倍器B1
2に送出する周波数フィルタ部17を受信機に備える。
(57) [Abstract] [Purpose] To obtain a radar device having a receiver capable of suppressing near-field noise of a reference frequency signal sent from a transmitter through a transmission line. A reference frequency signal sent from a transmitter 1 to a receiver 2 through a transmission line is distributed by a distributor 14, and a crystal filter 15 which is a narrow band filter suppresses signal noise, and then a synthesizer. The signal is combined in 16 and the multiplier B1
The receiver is equipped with the frequency filter unit 17 for sending to the receiver 2.
Description
【0001】[0001]
この考案は、たとえば艦船、航空機などの目標探知あるいはその追尾に使用さ れるレーダ装置に関するものである。 The present invention relates to a radar device used for, for example, target detection or tracking of a ship or an aircraft.
【0002】[0002]
図2は従来のレーダ装置の構成を示すもので、1は送信機、2は受信機、3は 複数の基準信号発生器からなる基準信号発生部、4は基準信号発生部3からの基 準信号を時間的に切換える周波数切換器、5は送信信号用逓倍器A、6は高周波 パルス発生器、7は送信信号用逓倍器A5からの信号と高周波パルス発生器6か らの信号を混合する混合器A、8は送信必要電力に増幅する増幅器、9は送受切 換回路、10はアンテナ部、11は送信機からの基準信号の入力部に備えられた 雑音抑圧用広帯域周波数炉波器、12は広帯域周波数炉波器11を通過した基準 信号を受信局発信号に逓倍する逓倍器B、13はアンテナ部10からの受信信号 と逓倍器B12からの受信局発信号を混合し、中間周波数信号を発生させる混合 器Bである。 FIG. 2 shows the configuration of a conventional radar device. Reference numeral 1 is a transmitter, 2 is a receiver, 3 is a reference signal generator including a plurality of reference signal generators, and 4 is a reference signal from the reference signal generator 3. Frequency switcher for switching signals temporally, 5 is a multiplier for transmitting signal A, 6 is a high frequency pulse generator, and 7 is a signal from the multiplier for transmitting signal A5 and a signal from the high frequency pulse generator 6 are mixed. Mixer A, 8 is an amplifier for amplifying required transmission power, 9 is a transmission / reception switching circuit, 10 is an antenna section, 11 is a broadband frequency reactor for noise suppression provided in an input section of a reference signal from a transmitter, Reference numeral 12 is a multiplier B that multiplies the reference signal that has passed through the broadband frequency wave reactor 11 into a receiving station originating signal, and 13 is a mixture of the receiving signal from the antenna unit 10 and the receiving station originating signal from the multiplier B12, and an intermediate frequency It is a mixer B that generates a signal.
【0003】 図2の様な構成において、送信機1内の基準信号発生部3で発生した複数の基 準信号は、周波数切換器4でその一波が任意に選択され、逓倍器A5で逓倍され た信号は、高周波パルス発生器6からのパルスと混合器7で混合され、増幅器8 で増幅された後、アンテナ部10に送られ放射される。一方、アンテナ部10よ り入力された受信信号は、広帯域周波数炉波器11で、雑音抑圧され局発信号に 逓倍された信号と混合器B13で混合され、中間周波数信号に変換され、レーダ ビデオ信号処理部に送られる。In the configuration as shown in FIG. 2, one of the plurality of reference signals generated by the reference signal generator 3 in the transmitter 1 is arbitrarily selected by the frequency switch 4 and is multiplied by the multiplier A5. The generated signal is mixed with the pulse from the high frequency pulse generator 6 by the mixer 7, amplified by the amplifier 8, and then sent to the antenna unit 10 to be radiated. On the other hand, the received signal input from the antenna unit 10 is mixed in the broadband frequency reactor 11 with the noise-suppressed signal multiplied by the local oscillator signal in the mixer B13 and converted into an intermediate frequency signal, which is then converted into a radar video signal. It is sent to the signal processing unit.
【0004】[0004]
上記のように構成され、かつ動作する従来の従来のレーダ装置では、送信機か ら受信機に伝送線にて送られた基準周波数信号に外部からの雑音が重畳し、その 抑圧を行う周波数炉波器は、すべての基準周波数信号が通過できる広帯域である ため、基準周波数信号の近傍雑音が抑圧できず、逓倍器B後の局発信号の雑音が 多くなってしまうことが避けられなかった。 In the conventional radar device configured and operating as described above, the noise from the outside is superimposed on the reference frequency signal sent from the transmitter to the receiver via the transmission line, and the frequency furnace that suppresses the noise. Since the wave filter has a wide band through which all the reference frequency signals can pass, it is inevitable that the local noise after the multiplier B is increased, because the neighborhood noise of the reference frequency signal cannot be suppressed.
【0005】 この考案は以上のような課題を解消するためになされたもので、受信機内に狭 帯域フィルタを設けることにより、基準周波数信号に重畳した雑音信号を抑圧し 、逓倍後の局発周波数信号の雑音信号を押えるものである。The present invention has been made in order to solve the above problems. A narrow band filter is provided in the receiver to suppress a noise signal superimposed on a reference frequency signal and to multiply a local oscillation frequency after multiplication. The noise of the signal is suppressed.
【0006】[0006]
この考案に係わるレーダ装置は、受信機内の基準周波数信号に重畳した雑音を 抑圧するために、狭帯域の周波数信号を通過させるフィルタを設けたものである 。 The radar device according to the present invention is provided with a filter that passes a narrow band frequency signal in order to suppress noise superimposed on the reference frequency signal in the receiver.
【0007】[0007]
この考案におけるレーダ装置は、送信機から受信機に送る際に重畳した、個々 の基準周波数信号の近傍雑音を、複数の基準周波数信号のそれぞれの周波数を中 心とした複数の狭帯域フィルタであるクリスタルフィルタ等を設けたことにより 、任意に選択された信号周波数の雑音を抑圧できるのである。 The radar device according to the present invention is a plurality of narrow-band filters in which the neighboring noise of each reference frequency signal, which is superimposed when transmitting from the transmitter to the receiver, is centered on each frequency of the plurality of reference frequency signals. By providing the crystal filter or the like, it is possible to suppress the noise of the signal frequency arbitrarily selected.
【0008】[0008]
実施例1. 図1はこの考案によるレーダ装置の一実施例の構成を示す図である。図1にお いて1〜10、12及び13は、上記従来技術と同様であり、14は分配器、1 5はクリスタルフィルタ、16は合成器、17は周波数フィルタ部である。 Example 1. FIG. 1 is a diagram showing the configuration of an embodiment of a radar device according to the present invention. In FIG. 1, 1 to 10, 12 and 13 are the same as those in the prior art, 14 is a distributor, 15 is a crystal filter, 16 is a combiner, and 17 is a frequency filter section.
【0009】 上記のような構成において、周波数切換器4で任意に選択された基準周波数信 号は、受信機2に入力された後、周波数フィルタ部17内の分配器14により信 号分配し、狭帯域フィルタであるクリスタルフィルタ15で、信号の近傍雑音を 抑圧した後、合成器16で信号を合成し、逓倍器B13に出力されるのである。In the above configuration, the reference frequency signal arbitrarily selected by the frequency switch 4 is input to the receiver 2 and then distributed by the distributor 14 in the frequency filter unit 17, The crystal filter 15 which is a narrow band filter suppresses the neighborhood noise of the signal, and then the combiner 16 combines the signals and outputs them to the multiplier B13.
【0010】[0010]
この考案は以上説明した通り構成されており、送信機から受信機に送る際に重 畳した雑音をその近傍の雑音まで抑圧できるため、逓倍後の局発周波数信号の雑 音信号を十分に押えることができるという効果がある。 The present invention is configured as described above, and can suppress the noise that is superimposed when it is sent from the transmitter to the receiver to the noise in the vicinity thereof, so that the noise signal of the local oscillator frequency signal after multiplication can be sufficiently suppressed. The effect is that you can.
【図1】この考案の実施例1によるレーダ装置の構成図
である。FIG. 1 is a configuration diagram of a radar device according to a first embodiment of the present invention.
【図2】従来の一実施例のレーダ装置の構成図である。FIG. 2 is a block diagram of a conventional radar device.
1 送信機 2 受信機 3 基準信号発生部 4 周波数切換器 5 逓倍器A 6 高周波パルス発生器 7 混合器A 8 増幅器 9 送受切換回路 10 アンテナ部 11 広帯域周波数炉波器 12 逓倍器B 13 混合器B 14 分配器 15 クリスタルフィルタ 16 合成器 17 周波数フィルタ部 1 transmitter 2 receiver 3 reference signal generator 4 frequency switcher 5 multiplier A 6 high frequency pulse generator 7 mixer A 8 amplifier 9 transmission / reception switching circuit 10 antenna unit 11 wideband frequency converter 12 multiplier B 13 mixer B 14 Distributor 15 Crystal filter 16 Combiner 17 Frequency filter section
Claims (1)
において、基準周波数信号及び高周波電力パルスを出力
する送信機と、基準周波数信号をフィルタリングする狭
帯域フィルタを備えた周波数フィルタ部を有し、受信信
号を周波数変換する受信機と、送信信号と受信信号の切
替えを行う送受切替回路と、アンテナ部を有することを
特徴とするレーダ装置。Claims for utility model registration 1. A radar device for searching or tracking a target, comprising: a transmitter for outputting a reference frequency signal and a high frequency power pulse; and a narrow band filter for filtering the reference frequency signal. A radar device comprising: a receiver having a frequency filter unit for frequency-converting a received signal; a transmission / reception switching circuit for switching between a transmission signal and a reception signal; and an antenna unit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2394191U JPH054067U (en) | 1991-04-11 | 1991-04-11 | Radar equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2394191U JPH054067U (en) | 1991-04-11 | 1991-04-11 | Radar equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH054067U true JPH054067U (en) | 1993-01-22 |
Family
ID=12124560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2394191U Pending JPH054067U (en) | 1991-04-11 | 1991-04-11 | Radar equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH054067U (en) |
-
1991
- 1991-04-11 JP JP2394191U patent/JPH054067U/en active Pending
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