JPH0482432A - Monitoring device for reception booster amplifier - Google Patents
Monitoring device for reception booster amplifierInfo
- Publication number
- JPH0482432A JPH0482432A JP2197537A JP19753790A JPH0482432A JP H0482432 A JPH0482432 A JP H0482432A JP 2197537 A JP2197537 A JP 2197537A JP 19753790 A JP19753790 A JP 19753790A JP H0482432 A JPH0482432 A JP H0482432A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- pilot
- booster amplifier
- level
- 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
- 238000012806 monitoring device Methods 0.000 title claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 abstract description 14
- 230000002238 attenuated effect Effects 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000003786 synthesis reaction Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 15
- 238000000926 separation method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- Control Of Amplification And Gain Control (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は受信ブースタ増幅器監視装置に係り、アンテナ
の近くに受信ブースタ増幅器が設置され、その出力が、
高周波同軸線路等を介して受信器に入力されるような構
成の無線受信施設及び放送用の施設において、受信ブー
スタ増幅器の利得変動が受信器側で測定できる受信ブー
スタ増幅器の監視装置に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a receiving booster amplifier monitoring device, in which a receiving booster amplifier is installed near an antenna, and its output is
This invention relates to a receiving booster amplifier monitoring device that can measure gain fluctuations of the receiving booster amplifier on the receiver side in radio receiving facilities and broadcasting facilities configured such that input is input to the receiver via a high frequency coaxial line, etc. .
受信ブースタ増幅器は受信感度を高めるために用いられ
るので、一般に、アンテナに近い位置に設置される。こ
のため受信器との間に同軸線路等の伝送路を設けるが、
その増幅器等の動作状態を受信器の方から監視する方法
として、伝送信号を受信器の入力端に伝送するための信
号線とは別に監視線を設ける方法がある。この場合は信
号経路の設備工事とは別に監視線の設備工事か通常必要
となるため、工事費用等が増大する問題かある。Since the reception booster amplifier is used to increase reception sensitivity, it is generally installed near the antenna. For this reason, a transmission line such as a coaxial line is installed between the receiver and the receiver.
As a method of monitoring the operating state of the amplifier etc. from the receiver side, there is a method of providing a monitoring line separate from the signal line for transmitting the transmission signal to the input terminal of the receiver. In this case, equipment work for the monitoring line is usually required in addition to the equipment work for the signal path, so there is a problem of increased construction costs.
これを解決するため従来は第６図の電力伝送方式を用い
た第７図の基本回路を使用していた。In order to solve this problem, conventionally the basic circuit shown in FIG. 7 using the power transmission system shown in FIG. 6 has been used.
第６図は５３は受信ブースタ増幅器、５４は電力分離フ
ィルタ、５５は高周波同軸線路、５６は低域フィルタ、
５７は高域フィルタ、５９は電源経路である。In FIG. 6, 53 is a receiving booster amplifier, 54 is a power separation filter, 55 is a high-frequency coaxial line, 56 is a low-pass filter,
57 is a high-pass filter, and 59 is a power supply path.
この電力伝送方式は、同一伝送路に伝送信号と給電電流
か重畳されて伝送される。このため、給電電流を分離さ
せるための低域フィルタ５６と伝送信号を分離するため
の高域フィルタ５７から構成された電力分離フィルタ５
４か必要となる。In this power transmission method, a transmission signal and a power supply current are transmitted in a superimposed manner on the same transmission path. For this reason, the power separation filter 5 is composed of a low-pass filter 56 for separating the feeding current and a high-pass filter 57 for separating the transmission signal.
4 is required.
第７図に示す従来の基本回路構成例において、同図中、
基本回路はアンテナ６０、帯域フィルタ６１、受信ブー
スタ増幅器５３、電力分離フィルタ５４、高周波同軸線
路５５、第２の電力分離フィルタ５４′、電流モニタ回
路６３、電源回路６４、受信器６２より構成されている
。In the conventional basic circuit configuration example shown in FIG.
The basic circuit consists of an antenna 60, a bandpass filter 61, a reception booster amplifier 53, a power separation filter 54, a high frequency coaxial line 55, a second power separation filter 54', a current monitor circuit 63, a power supply circuit 64, and a receiver 62. There is.
第７図の構成は伝送信号と給電電流を重畳して増幅器５
３の給電電流を監視する方法である。次に同図を用いて
動作を説明する。The configuration shown in Fig. 7 superimposes the transmission signal and the feeding current to the amplifier 5.
This is a method of monitoring the power supply current of No. 3. Next, the operation will be explained using the same figure.
アンテナ６０で受信される受信信号のうち所望の信号が
帯域フィルタ６１で検出され、受信ブースタ増幅器５３
で所望のレベルまで増幅される。A desired signal among the received signals received by the antenna 60 is detected by the bandpass filter 61, and the desired signal is detected by the reception booster amplifier 53.
is amplified to the desired level.
この高周波信号は第１の電力分離フィルタ５４に入力さ
れるが電力分離フィルタ５４からの高周波同軸線路５５
にのみ出力するように構成されている。従って、電力分
離フィルタ５４からの高周波信号は高周波同軸線路５５
を伝送され、第２の電力分離フィルタ５４′を経て、こ
れらの通過損失分だけ減衰されて、受信器６２に入力さ
れる。This high frequency signal is input to the first power separation filter 54, and the high frequency coaxial line 55 from the power separation filter 54
is configured to output only to Therefore, the high frequency signal from the power separation filter 54 is transferred to the high frequency coaxial line 55.
is transmitted, passes through the second power separation filter 54', is attenuated by the amount of these passing losses, and is input to the receiver 62.
一方、受信ブースタ増幅器５３は、前述の電力伝送方式
を用いて動作させる。電源回路６４から出力される供給
電流は電流モニタ回路６３に入力され、常に電流をモニ
タしている。この電流モニタ回路６３から出力さた給電
電流は、第２の電力分離フィルタ５４′により伝送信号
と同一の経路である高周波同軸線路５５を介して、第１
の電力分離フィルタ５４へ伝送される。On the other hand, the reception booster amplifier 53 is operated using the above-described power transmission method. The supply current output from the power supply circuit 64 is input to the current monitor circuit 63, which constantly monitors the current. The feed current output from the current monitor circuit 63 is passed through the high frequency coaxial line 55, which is the same path as the transmission signal, by the second power separation filter 54' to the first
It is transmitted to the power separation filter 54 of.
第１の電力分離フィルタ５４では高周波信号と給電電流
を分離し電力分離フィルタ５，４の端子Ａに給電電流を
出力する。その分離された給１電流は、電源経路５９を
通り、受信ブースタ増幅器５３の電源端子に供給される
ので、これらに流れるバイアス電流をモニタすればトラ
ンジスタの動作状態がわかる。すなわち、受信ブースタ
増幅器５３に用いられるトランジスタが正常に動作して
いるかどうかを監視することができる。The first power separation filter 54 separates the high frequency signal and the power supply current, and outputs the power supply current to the terminals A of the power separation filters 5 and 4. The separated supply 1 current passes through the power supply path 59 and is supplied to the power supply terminal of the receiving booster amplifier 53, so by monitoring the bias current flowing therein, the operating state of the transistor can be determined. That is, it is possible to monitor whether the transistors used in the reception booster amplifier 53 are operating normally.
しかるに、給電電流の変化は小さいため、この変化量か
ら、複数のトランジスタ等で構成さた受信ブースタ増幅
器５３の利得を把握することができない。また、トラン
ジスタ以外の伝送路の破損の状態を把握するこができな
い。以上のように従来の方法では受信ブースタ増幅器５
３の動作状態を的確に受信器側で判断することができな
い欠点かあった。However, since the change in the feeding current is small, the gain of the receiving booster amplifier 53, which is composed of a plurality of transistors, etc., cannot be determined from this amount of change. Furthermore, it is not possible to determine the state of damage to transmission lines other than transistors. As described above, in the conventional method, the receiving booster amplifier 5
There was a drawback that the operating status of 3 could not be accurately judged on the receiver side.
本発明は上記の点に鑑みなされたもので、受信器側で受
信ブースタ増幅器の利得変動を測定できる受信ブースタ
増幅器の監視装置を提供することを目的とする。The present invention has been made in view of the above points, and an object of the present invention is to provide a monitoring device for a receiving booster amplifier that can measure gain fluctuations of the receiving booster amplifier on the receiver side.
第１図は本発明の原理構成図を示す。アンテナ１０の近
くに設置され、高周波線路１４を介して、受信器１８に
信号を出力するように構成さた受信ブースタ増幅器】２
の監視装置において、パイロット信号を発生するパイロ
ット発生器１Ｇと、高周波線路１４を介して入力された
合成信号を受信器１８方向へ送出し、パイロット発生器
１６からのパイロット信号は高周波線路１４へ送出する
第１の切り換え手段１５と、高周波線路１４を介して入
力されたパイロット信号を受信ブースタ増幅器１２の入
力側方向へ送出し、受信ブースタ増幅器１２の出力合成
信号を高周波線路１４へ送出する第２の切り換え手段１
３と、第２の切り換え手段１３から取り呂されたパイロ
ット信号をアンテナ１０で受信された受信信号を合成し
、その合成信号を受信ブースタ増幅器１２へ入力する合
成手段１１と、第１の切り換え手段１５から取り出され
た合成信号から受信信号とパイロット信号とパイロット
発生器１６からのパイロット信号とを分離し、受信信号
を受信器１８へ供給する分波回路１７と、分波回路１７
から取り出された信号中のパイロット信号とをレベル比
較し、受信ブースタ増幅器１２の監視結果を得るレベル
比較手段１９とよりなる。FIG. 1 shows a basic configuration diagram of the present invention. A reception booster amplifier installed near the antenna 10 and configured to output a signal to the receiver 18 via the high frequency line 14]2
In this monitoring device, a pilot generator 1G that generates a pilot signal and a composite signal inputted via a high frequency line 14 are sent out toward a receiver 18, and a pilot signal from the pilot generator 16 is sent out to the high frequency line 14. a first switching means 15 for transmitting a pilot signal input via the high-frequency line 14 toward the input side of the receiving booster amplifier 12 and a second switching means for transmitting an output composite signal of the receiving booster amplifier 12 to the high-frequency line 14. Switching means 1
3, a combining means 11 for combining the pilot signal received from the second switching means 13 with a received signal received by the antenna 10 and inputting the combined signal to the reception booster amplifier 12, and the first switching means a branching circuit 17 that separates a received signal, a pilot signal, and a pilot signal from a pilot generator 16 from a composite signal taken out from the 15, and supplies the received signal to a receiver 18;
A level comparison means 19 compares the level of the pilot signal in the signal extracted from the signal and obtains the result of monitoring the reception booster amplifier 12.
本発明は受信器側のパイロ・ノド発生器１６から第１の
切り換え手段１５、高周波線路１４、第２の切り換え手
段１３及び合成手段１１を介して受信ブースタ増幅器１
２ヘパイロ・ント信号を注入して増幅させ、その増幅パ
イロット信号を第２の切り換え手段１３、高周波線路１
４、第１の切り換え手段】５、分波手段１７を介してレ
ベル比較手段１９に入力し、そのレベルを検出する構成
であるので、パイロット信号のレベル比較結果から受信
ブースタ増幅器１２の動作状態を的確に判断てきる。The present invention connects the pyro-node generator 16 on the receiver side to the receiving booster amplifier 1 via the first switching means 15, the high frequency line 14, the second switching means 13 and the combining means 11.
2 pilot signal is injected and amplified, and the amplified pilot signal is transferred to the second switching means 13 and the high frequency line 1.
4. First switching means] 5. Since the input is input to the level comparison means 19 via the demultiplexing means 17 and the level is detected, the operating state of the receiving booster amplifier 12 can be determined from the result of level comparison of the pilot signal. I can judge accurately.
第２図は本発明の第一の実施例の構成を示す。 FIG. 2 shows the configuration of a first embodiment of the present invention.
同図において第１図および第６図と同一構成部分には同
一符号を付し、その説明を省略する。同図中、３１は第
１のサーキュレータ、３２は第２の分波回路、３３は第
２のサーキュレータ、３４はパイロットフィルタ、３５
は第１の分波回路、３６はパイロット検波回路、３７は
パイロットレベル比較回路、３８は減衰器、３９は合成
回路を示す。In this figure, the same components as in FIGS. 1 and 6 are denoted by the same reference numerals, and their explanations will be omitted. In the figure, 31 is a first circulator, 32 is a second branching circuit, 33 is a second circulator, 34 is a pilot filter, and 35 is a second circulator.
36 is a pilot detection circuit, 37 is a pilot level comparison circuit, 38 is an attenuator, and 39 is a synthesis circuit.
以下第２図の動作について説明する。パイロット発生器
３０から出力される高周波のパイロット信号Ｓ０は第１
のサーキュレータ３１を介して受信信号と同じ伝送路で
ある高周波同軸線路５５に注入される。第２の分波回路
３２は第２のサキュレータ３３とパイロットフィルタ３
４を有し、受信器側で高周波同軸線路５５に注入された
パイロット信号Ｓ０を検出する。The operation shown in FIG. 2 will be explained below. The high frequency pilot signal S0 output from the pilot generator 30 is the first
The signal is injected through the circulator 31 into the high frequency coaxial line 55, which is the same transmission path as the received signal. The second branching circuit 32 includes a second circulator 33 and a pilot filter 3.
4, and the pilot signal S0 injected into the high frequency coaxial line 55 is detected on the receiver side.
第２の分波回路３２で検出されたパイロット信号Ｓ０は
、受信ブースタ増幅器５３の入力端側の合成回路３９で
受信信号と合成される。この際、受信ブースタ増幅器５
３が発振しないように、減衰器３８の減衰量を調節し、
パイロット信号Ｓ０のレベルを低下させてから合成回路
３９に入力する。減衰器３８で減衰されたパイロット信
号を８０′ とする。The pilot signal S0 detected by the second branching circuit 32 is combined with the received signal by a combining circuit 39 on the input end side of the receiving booster amplifier 53. At this time, the reception booster amplifier 5
Adjust the attenuation amount of the attenuator 38 so that 3 does not oscillate,
The level of the pilot signal S0 is lowered and then input to the combining circuit 39. The pilot signal attenuated by the attenuator 38 is assumed to be 80'.
第３図はこのパイロット信号８０′と受信信号とを合成
する合成回路３９の構成例を示す。FIG. 3 shows an example of the configuration of a combining circuit 39 that combines the pilot signal 80' and the received signal.
第３図（Ａ）は構成回路３９を帯域フィルタで構成した
例で、受信信号入力端子６１１からのパイロット信号を
帯域フィルタ６１４に入力し、他方、パイロット信号入
力端子６１３からのパイロット信号を帯域フィルタ６１
５に入力し、それぞれ帯域フィルタ６１３．６１４から
取り出した異なる周波数を合成して合成信号出力端子６
１２より合成信号を出力する。FIG. 3(A) shows an example in which the configuration circuit 39 is configured with a bandpass filter, in which the pilot signal from the received signal input terminal 611 is inputted to the bandpass filter 614, and the pilot signal from the pilot signal input terminal 613 is inputted to the bandpass filter 614. 61
5 and synthesizes the different frequencies taken out from the bandpass filters 613 and 614, respectively, and outputs the synthesized signal to the output terminal 6.
12 outputs a composite signal.
第３図（Ｂ）は帯域フィルタによる別の構成による合成
回路で、パイロット信号入力端子６１３からのパイロッ
ト信号を帯域フィルタ６１５に入力し、さらに受信信号
入力端子６１１からの受信信号とサーキュレータ６１６
で合成し、合成信号出力端子６１２より合成信号を出力
する。FIG. 3(B) shows a synthesis circuit with another configuration using a bandpass filter, in which the pilot signal from the pilot signal input terminal 613 is input to the bandpass filter 615, and the received signal from the received signal input terminal 611 and the circulator 616.
and outputs a composite signal from a composite signal output terminal 612.
第３図（Ｃ）は合成回路３９を方向性結合器６１７を用
いて構成した例で、受信信号入力端子６１１に入力され
た受信信号は殆ど減衰せずに合成信号出力端子６１２に
出力され、パイロット信号入力端子６１３から入力され
たパイロット信号Ｓ ０１は方向性結合器６１７で結合
による減衰をうけて合成信号出力端子６１２に出力され
る。FIG. 3(C) shows an example in which the combining circuit 39 is configured using a directional coupler 617, in which the received signal input to the received signal input terminal 611 is outputted to the combined signal output terminal 612 with almost no attenuation. Pilot signal S 01 input from pilot signal input terminal 613 is attenuated by coupling in directional coupler 617 and output to composite signal output terminal 612 .
第３図（Ａ）、（Ｂ）、（Ｃ）でそれぞれ合成された信
号は、受信ブースタ増幅器５３に入力される。The signals synthesized in FIGS. 3A, 3B, and 3C are input to the reception booster amplifier 53.
受信ブースタ増幅器５３の増幅利得をＡとすると、その
出力はそれぞれＡ倍された信号となる。Assuming that the amplification gain of the reception booster amplifier 53 is A, each output becomes a signal multiplied by A.
この入信された信号は第２の分波回路３２、高周波同軸
線路５５、第１のサーキュレータ３１を伝送し、第１の
分波回路３５に入力される。This input signal is transmitted through the second branching circuit 32, the high frequency coaxial line 55, and the first circulator 31, and is input to the first branching circuit 35.
第１の分波回路３５は受信信号とパイロット信号を分離
する機能を有しており、伝送されてきた受信信号を受信
器６２へ分離して出力し、パイロット信号をパイロット
検波回路３６へ分離して出力する。The first branching circuit 35 has a function of separating a received signal and a pilot signal, and separates and outputs the transmitted received signal to the receiver 62, and separates the pilot signal to the pilot detection circuit 36. and output it.
パイロット検波回路３６ではパイロット発生器３０から
のパイロット信号と同一周波数の信号をもとにパイロッ
ト信号を検波する。ここで第２の分波回路３２、高周波
同軸線路５５、第１のサーキュレータ３１、第１の分波
回路３５の通過損失の合計をαとすると、この時の検出
レベルは（ＡＳｏ’ −α）となる。The pilot detection circuit 36 detects a pilot signal based on a signal having the same frequency as the pilot signal from the pilot generator 30. Here, if the sum of the passing losses of the second branching circuit 32, the high-frequency coaxial line 55, the first circulator 31, and the first branching circuit 35 is α, then the detection level at this time is (ASo' - α) becomes.
この検出レベルはオペアンプを用いたアナログ回路やマ
イクロコンピュータで構成したパイロットレベル比較回
路３７に入力され、パイロット発生器３０の出力レベル
を基準にパイロット検波回路３６の検出レベル（ＡＳ、
−α）とのデシベルのレベル差を検出する。受信ブ
ースタ増幅器５３以外の伝送路は全て受動回路で構成さ
れている。This detection level is input to a pilot level comparison circuit 37 composed of an analog circuit using an operational amplifier and a microcomputer, and the detection level (AS,
−α) is detected. All transmission lines other than the reception booster amplifier 53 are composed of passive circuits.
そのため、受信ブースタ増幅器５３以外の伝送損失は安
定と考えられるので、このレベル差の変化量は、受信ブ
ースタ増幅器５３の利得Ａの変動に一致する。即ち、最
初にパイロットレベル比較回路３７で検出したレベル差
を基準にして、このレベル差の変化分をパイロットレベ
ル比較回路３７で検出すれば、受信ブースタ増幅器５３
の利得変動が測定できる。Therefore, since the transmission losses other than the receiving booster amplifier 53 are considered to be stable, the amount of change in this level difference matches the variation in the gain A of the receiving booster amplifier 53. That is, if the pilot level comparison circuit 37 detects a change in level difference based on the level difference first detected by the pilot level comparison circuit 37, the reception booster amplifier 53
gain fluctuation can be measured.
第４図は本発明の一実施例のパイロット信号経路のレベ
ルダイヤの例を示す。FIG. 4 shows an example of a level diagram of a pilot signal path according to an embodiment of the present invention.
同図中、Ｙ軸方向は各回路の出力レベルを表し、Ｘ軸方
向は第２図に対応する各回路の番号を表している。第４
図は第２図の構成要素であるパイロット発生器３０のパ
イロット信号Ｓ０の出力レベルをＯｄＢｍ 、受信ブー
スタ増幅器５３の利得Ａを３０ｄＢ減衰器３８の減衰量
を１０ｄＢ、高周波同軸線路５５の通過損失を５ｄＢと
した各回路の出力レベルを表している。In the figure, the Y-axis direction represents the output level of each circuit, and the X-axis direction represents the number of each circuit corresponding to FIG. Fourth
The figure shows the output level of the pilot signal S0 of the pilot generator 30, which is a component of FIG. The output level of each circuit is expressed at 5 dB.
受信ブースタ増幅器５３の出力レベルをＡＳ。The output level of the receiving booster amplifier 53 is AS.
とじ、受信ブースタ増幅器５３の出力端から第１の分波
回路３５の出力端までの通過損失をαとし、パイロット
検波回路３６の出力レベルを（ＡＳ。The passage loss from the output end of the reception booster amplifier 53 to the output end of the first branching circuit 35 is α, and the output level of the pilot detection circuit 36 is (AS).
−α）とすると、パイロットレベル比較回路３７におい
て、パイロット発生器３０の出力端から受信器６２の入
力端までの総合利得ａ′か検出できる。-α), the pilot level comparison circuit 37 can detect the total gain a' from the output end of the pilot generator 30 to the input end of the receiver 62.
第５図は本発明の他の実施例を示す第５図は第２図の第
１の分波回路３５の前段に前置増幅器７０を具備した構
成である。この構成において、パイロット信号Ｓ０は前
述の動作により帰還され、前置増幅器７０の後段に具備
されたパイロット検波回路３６で検出てきる。FIG. 5 shows another embodiment of the present invention. FIG. 5 shows a configuration in which a preamplifier 70 is provided upstream of the first branching circuit 35 of FIG. In this configuration, the pilot signal S0 is fed back by the above-described operation and detected by the pilot detection circuit 36 provided after the preamplifier 70.
この場合は、前置増幅器７０の後段に周波数変換器が接
続される構成でも、周波数変換器の出力端にパイロット
検波回路３６を具備することにより、同様の動作か実現
てきる。これにより、前置増幅器７０、周波数変換器を
含めた利得変化も測定できる利点がある。In this case, even in a configuration in which a frequency converter is connected after the preamplifier 70, the same operation can be achieved by providing the pilot detection circuit 36 at the output end of the frequency converter. This has the advantage that gain changes including the preamplifier 70 and frequency converter can also be measured.
上記のように本発明によればパイロット信号を受信器の
入力端で注入し、受信ブースタ増幅器を経由したのち、
受信器に帰還させ、そのレベルを検出する構成であるの
で、パイロット信号を発生及び、検出する機能を有した
能動回路が受信器側に配備できる。このため、これらの
監視系の故障の際にも容易に修理ができ、信頼度の高い
監視系が実現でき、パイロット発生器の出力変動の影響
を受けないで、高精度に受信ブースタ増幅器の利得変化
が測定できる特長がある。As described above, according to the present invention, the pilot signal is injected at the input terminal of the receiver, and after passing through the receiver booster amplifier,
Since the configuration is such that the pilot signal is fed back to the receiver and its level is detected, an active circuit having the function of generating and detecting the pilot signal can be provided on the receiver side. Therefore, even if these monitoring systems break down, they can be easily repaired and a highly reliable monitoring system can be realized, and the gain of the receiving booster amplifier can be adjusted with high precision without being affected by fluctuations in the output of the pilot generator. It has the advantage of being able to measure changes.
第１図は本発明の原理構成図、
第２図は本発明の一実施例の構成図、
第３図は本発明の一実施例の合成回路の構成例、第４図
は本発明の一実施例のパイロット信号経路のレベルダイ
ヤの例、
第５図は本発明の他の実施例を示す図、第６図は従来の
電力伝送方式を示す図、第７図は従来の基本回路構成例
を示す図である。
１０・・・アンテナ、１２・・・高周波同軸線路、１３
・・・受信器、１４・・・受信ブースタ増幅器、１６・
・・パイロット発生器、１７・・・第１のサーキュレー
タ、１８・・・第１の分波回路、１９・・・パイロット
検波回路、２０・・・パイロットレベル比較回路、２２
・・・第２のサーキュレータ、２３・・・パイロットフ
ィルタ、２４・・・第２の分波回路、２６・・・合成回
路、７０・・・前置増幅器。
（方式）
手
続
補
正
書FIG. 1 is a diagram showing the principle of the present invention; FIG. 2 is a diagram showing the configuration of an embodiment of the present invention; FIG. 3 is an example of the configuration of a synthesis circuit according to an embodiment of the present invention; An example of a level diagram of a pilot signal path according to an embodiment, FIG. 5 is a diagram showing another embodiment of the present invention, FIG. 6 is a diagram showing a conventional power transmission system, and FIG. 7 is an example of a conventional basic circuit configuration. FIG. 10... Antenna, 12... High frequency coaxial line, 13
...Receiver, 14...Reception booster amplifier, 16.
... Pilot generator, 17... First circulator, 18... First branching circuit, 19... Pilot detection circuit, 20... Pilot level comparison circuit, 22
... second circulator, 23 ... pilot filter, 24 ... second branching circuit, 26 ... combining circuit, 70 ... preamplifier. (Form) Procedural amendment written
Claims (1)
機に信号を出力するように構成された受信ブースタ増幅
器の監視装置において、 パイロット信号を発生するパイロット発生器と、前記高
周波線路を介して入力された合成信号を前記受信器方向
へ送出し、該パイロット発生器からのパイロット信号は
該高周波線路へ送出する第１の切り換え手段と、 前記高周波線路を介して入力された前記パイロット信号
を前記受信ブースタ増幅器の入力側方向へ送出し、該受
信ブースタ増幅器の出力合成信号を該高周波線路へ送出
する第２の切り換え手段と、 前記第２の切り換え手段から取り出された前記パイロッ
ト信号を前記アンテナで受信された受信信号を合成し、
その合成信号を前記受信ブースタ増幅器へ入力する合成
手段と、 前記第１の切り換え手段から取り出された前記合成信号
から前記受信信号と前記パイロット信号とを分離し、該
受信信号を前記受信器へ供給する分波回路と、 該分波回路から取り出した信号中のパイロット信号と前
記パイロット発生器からのパイロット信号とをレベル比
較し、前記受信ブースタ増幅器の監視結果を得るレベル
比較手段とよりなる受信ブースタ増幅器の監視装置。[Scope of Claim] A receiving booster amplifier monitoring device installed near an antenna and configured to output a signal to a receiver via a high frequency line, comprising: a pilot generator that generates a pilot signal; a first switching means for transmitting a composite signal input via a high frequency line toward the receiver, and transmitting a pilot signal from the pilot generator to the high frequency line; a second switching means for sending the pilot signal toward the input side of the receiving booster amplifier and sending an output composite signal of the receiving booster amplifier to the high frequency line; and the pilot taken out from the second switching means. combining the received signals received by the antenna;
combining means for inputting the combined signal to the receiving booster amplifier; separating the received signal and the pilot signal from the combined signal taken out from the first switching means; and supplying the received signal to the receiver. and level comparison means for comparing the levels of a pilot signal in a signal extracted from the branching circuit with a pilot signal from the pilot generator to obtain a monitoring result of the receiving booster amplifier. Amplifier monitoring equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2197537A JPH0482432A (en) | 1990-07-25 | 1990-07-25 | Monitoring device for reception booster amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2197537A JPH0482432A (en) | 1990-07-25 | 1990-07-25 | Monitoring device for reception booster amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0482432A true JPH0482432A (en) | 1992-03-16 |
Family
ID=16376126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2197537A Pending JPH0482432A (en) | 1990-07-25 | 1990-07-25 | Monitoring device for reception booster amplifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0482432A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001031814A1 (en) * | 1999-10-28 | 2001-05-03 | Nec Corporation | Failure detection system and failure detection method |
| JP2009153010A (en) * | 2007-12-21 | 2009-07-09 | Fujitsu Ltd | Rf amplifier monitoring apparatus and method |
| US8081594B2 (en) | 2006-11-30 | 2011-12-20 | Panasonic Corporation | Extension subordinate machine system and signal relaying method |
| US10994712B2 (en) | 2015-07-02 | 2021-05-04 | Sony Corporation | Vehicle control device and vehicle control method |
-
1990
- 1990-07-25 JP JP2197537A patent/JPH0482432A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001031814A1 (en) * | 1999-10-28 | 2001-05-03 | Nec Corporation | Failure detection system and failure detection method |
| US8081594B2 (en) | 2006-11-30 | 2011-12-20 | Panasonic Corporation | Extension subordinate machine system and signal relaying method |
| JP2009153010A (en) * | 2007-12-21 | 2009-07-09 | Fujitsu Ltd | Rf amplifier monitoring apparatus and method |
| US10994712B2 (en) | 2015-07-02 | 2021-05-04 | Sony Corporation | Vehicle control device and vehicle control method |
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