JPS586481A - Beacon transmitter - Google Patents
Beacon transmitterInfo
- Publication number
- JPS586481A JPS586481A JP10438481A JP10438481A JPS586481A JP S586481 A JPS586481 A JP S586481A JP 10438481 A JP10438481 A JP 10438481A JP 10438481 A JP10438481 A JP 10438481A JP S586481 A JPS586481 A JP S586481A
- Authority
- JP
- Japan
- Prior art keywords
- sweep
- pulse
- oscillator
- output
- circuit
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/68—Marker, boundary, call-sign, or like beacons transmitting signals not carrying directional information
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は常時パルス電波を発射して、その電波を受信し
たレーダの映像表示面上に輝線を表示させ、装置の設置
方向なレーダに知らせるレーダ用のピーコン送信装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a peakon transmitting device for a radar that constantly emits pulsed radio waves, displays a bright line on the image display screen of the radar that receives the radio waves, and informs the radar of the installation direction of the device. It is something.
このようなビーコン送信装置では、対象とするレーダが
多数ある場合には、レーダの周波数範囲をカバーするた
めに、送信周波数を必要な範囲で掃引するのが普通であ
る。そしてレーダ側でのビーコン電波の受信率を上げる
ためには、別の周波数掃引を行なう電波を加えるという
方法がとられている。In such a beacon transmitting device, when there are a large number of target radars, it is common to sweep the transmission frequency within a necessary range in order to cover the frequency range of the radars. In order to increase the reception rate of beacon radio waves on the radar side, a method is used to add radio waves that perform another frequency sweep.
第1図はこのような場合の周波数掃引の方法の例を示し
、(A)は必要周波数範囲を高、低に分割して八とfB
との2つの周波数掃引を行なっており、(B)は必要周
波数範囲を掃引するfAとfBとの2つの周波数掃引を
時間的に2分の1周期ずらせている。我が国で実用され
ているレイマーク・ピーコン送信装置では9340〜9
470■hの間を第1図(A)の方法と同図(B)に準
じた3掃引の方法を用いている。Figure 1 shows an example of the frequency sweep method in such a case, and (A) divides the required frequency range into high and low parts and calculates
In (B), the two frequency sweeps fA and fB, which sweep the required frequency range, are temporally shifted by a half period. The Raymark/Pecon transmitter used in Japan is 9340-9.
A three-sweep method similar to the method shown in FIG. 1(A) and the method shown in FIG. 1(B) is used for 470 hours.
このような複数の周波数掃引を行なう場合、従来は複数
個の発振器を使用していた。第2図は2周波数掃引を行
なう従来の実施例を示す。同図の13と1bはそれぞれ
高域掃引系と低域掃引系のパルス発生回路(以下aは高
域掃引系、bは低域掃引系に対応)、2aと21)は電
、圧制御発振器、3aと31)は電力増幅器、4aと4
bは掃引発生回路、5は同期信号発生回路、6はハイブ
リッド回路、7は空中線である。本実施例では2つの周
波数掃引を行なうのに2つの発振器を使用している。Conventionally, when performing such multiple frequency sweeps, multiple oscillators were used. FIG. 2 shows a conventional embodiment that performs a two-frequency sweep. 13 and 1b in the same figure are pulse generation circuits for the high-frequency sweep system and low-frequency sweep system, respectively (hereinafter a corresponds to the high-frequency sweep system and b corresponds to the low-frequency sweep system), and 2a and 21) are electrical and pressure controlled oscillators. , 3a and 31) are power amplifiers, 4a and 4
b is a sweep generation circuit, 5 is a synchronization signal generation circuit, 6 is a hybrid circuit, and 7 is an antenna. In this embodiment, two oscillators are used to perform two frequency sweeps.
本発明はこの5ように複数の周波数掃引を行なうのに複
数個の発振器を使用する従来の装置を改良することを目
的とし、送信電波がパルスであることに注目し、1個の
発振器の出力周波数をパルス毎またはパルス群毎に切換
えて、複数の周波数掃引を行なうようにすることを特徴
とする。以下実施例にしたがって詳細に説明する。The present invention aims to improve the conventional device that uses multiple oscillators to perform multiple frequency sweeps as described above, and focuses on the fact that the transmitted radio waves are pulses. It is characterized in that the frequency is switched for each pulse or for each group of pulses to perform a plurality of frequency sweeps. A detailed explanation will be given below based on examples.
第3図は本発明の実施例のブロック図を示す。FIG. 3 shows a block diagram of an embodiment of the invention.
同図の10はパルス発生回路で矩形パルス列を発生する
。11は電圧制御発振器で、パルス発生回路10から矩
形パルス列を受け、このパルス列によって振幅変調され
た発振をし、またこの発振器11は掃引切換回路12か
も電圧波形を受け、その電圧波形に応じた発振周波数で
m嵩披撤で発振する。13は掃引発生回路で、2種の掃
引波形を発生する。10 in the figure is a pulse generation circuit that generates a rectangular pulse train. Reference numeral 11 denotes a voltage controlled oscillator which receives a rectangular pulse train from the pulse generating circuit 10 and oscillates with amplitude modulation according to this pulse train.This oscillator 11 also receives a voltage waveform from the sweep switching circuit 12 and oscillates according to the voltage waveform. It oscillates at a frequency of m height. 13 is a sweep generation circuit that generates two types of sweep waveforms.
12は掃引切換回路で、掃引発生回路13から2種の掃
引波形と、パルス発生回路lOから)012列を受け、
パルス毎に上記2種の掃引波形を切換えて出力する。切
換回路12の出力電圧波形は電圧制御発振器路11に加
えられる。14は電力増怪器で、電圧制御発振器11か
ら発振出力を受け、これを電力増幅する。15は空中線
で、電力増幅器14から増幅出力を受け、これを空中に
発射する。12 is a sweep switching circuit which receives two types of sweep waveforms from the sweep generation circuit 13 and the 012 column from the pulse generation circuit IO;
The two types of sweep waveforms mentioned above are switched and output for each pulse. The output voltage waveform of switching circuit 12 is applied to voltage controlled oscillator path 11. 14 is a power intensifier which receives the oscillation output from the voltage controlled oscillator 11 and amplifies the power thereof. An antenna 15 receives the amplified output from the power amplifier 14 and emits it into the air.
第4図は第3図の各部の波形を示し、(alは)ζルス
発生回路10の出力波形、+b)は掃引切換回路12の
出力波形、(C)は電圧制御発振器の発振周波数波形を
示し、fAとvA、 fsとVBとが対応する。FIG. 4 shows the waveforms of each part in FIG. 3, where (al) is the output waveform of the ζ pulse generation circuit 10, +b) is the output waveform of the sweep switching circuit 12, and (C) is the oscillation frequency waveform of the voltage controlled oscillator. , fA and vA correspond to each other, and fs and VB correspond to each other.
以上説明したように、上記実施例では1個の発振器で、
パルス毎に異なる2種の周波数掃引を行なっている。し
たがって、従来のように2個の発振器を使用する場合に
較べて発振器とその関連回路が少なくなり、装置が簡単
となる。As explained above, in the above embodiment, with one oscillator,
Two different frequency sweeps are performed for each pulse. Therefore, compared to the conventional case where two oscillators are used, the number of oscillators and their related circuits is reduced, and the device becomes simpler.
このように本発明によれば、1個の発振器で複数の周波
数掃引が可能となり、装置が簡単、小形、低価格になし
得る利点があり、ピーコン送信装置に利用して極めて有
効である。As described above, according to the present invention, it is possible to sweep a plurality of frequencies with one oscillator, and the device has the advantage of being simple, compact, and inexpensive, and is extremely effective when used in a peak transmitter.
第1図(A)及び(13)は周波数掃引の波形図、第2
図は従来の実施例のブロック図、。扼3図は本発明の実
施例のブロック図、第4図(al〜(C1は第3図の各
部の波形図である。
10はパルス発生回路、11は電圧制御発振器、12は
掃引切換回路、13は掃引発生回路、14は電力増幅器
、15は空中線である。
特許出願人
沖電気工業株式会社
特許出願代理人
弁理士 山 本 恵 −Figures 1 (A) and (13) are waveform diagrams of frequency sweep;
The figure is a block diagram of a conventional embodiment. Figure 3 is a block diagram of an embodiment of the present invention, and Figures 4 (al to C1 are waveform diagrams of each part in Figure 3. 10 is a pulse generation circuit, 11 is a voltage controlled oscillator, and 12 is a sweep switching circuit. , 13 is a sweep generation circuit, 14 is a power amplifier, and 15 is an antenna. Patent applicant: Oki Electric Industry Co., Ltd. Patent agent Megumi Yamamoto -
Claims (1)
る輝線により装置の設置方向をレーダに知らせるビーコ
ン送信装置において、単一のパルス発生回路と、少なく
とも2種の掃引波形を発生する掃引発生回路と、前記パ
ルス発生回路の出力に従って前記掃引波形を切換える掃
引切換回路と、該掃引切換回路の出力と前記パルス発生
回路の出力に従って掃引周波数を発生する電圧制御発振
器と、該発振器の出力を増幅して空中に発射する手段と
を有することを特徴とするビーコン送信装置。A beacon transmitting device that emits pulsed radio waves and informs the radar of the installation direction of the device using a bright line displayed on the radar's image display screen includes a single pulse generating circuit and a sweep generator that generates at least two types of sweep waveforms. a sweep switching circuit that switches the sweep waveform according to the output of the pulse generation circuit, a voltage controlled oscillator that generates a sweep frequency according to the output of the sweep switching circuit and the output of the pulse generation circuit, and amplifying the output of the oscillator. What is claimed is: 1. A beacon transmitting device characterized by having a means for transmitting a beacon into the air.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10438481A JPS586481A (en) | 1981-07-06 | 1981-07-06 | Beacon transmitter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10438481A JPS586481A (en) | 1981-07-06 | 1981-07-06 | Beacon transmitter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS586481A true JPS586481A (en) | 1983-01-14 |
Family
ID=14379257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10438481A Pending JPS586481A (en) | 1981-07-06 | 1981-07-06 | Beacon transmitter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS586481A (en) |
-
1981
- 1981-07-06 JP JP10438481A patent/JPS586481A/en active Pending
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