JP2004214917A - Radio wave monitoring apparatus - Google Patents

Radio wave monitoring apparatus Download PDF

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Publication number
JP2004214917A
JP2004214917A JP2002381465A JP2002381465A JP2004214917A JP 2004214917 A JP2004214917 A JP 2004214917A JP 2002381465 A JP2002381465 A JP 2002381465A JP 2002381465 A JP2002381465 A JP 2002381465A JP 2004214917 A JP2004214917 A JP 2004214917A
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Prior art keywords
radio
unit
signal
azimuth
radio wave
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JP2002381465A
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Japanese (ja)
Inventor
Hironori Ikeda
Mikihiro Yamazaki
Tokihiko Yokoi
幹宏 山崎
時彦 横井
裕則 池田
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Toshiba Corp
株式会社東芝
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio wave monitoring apparatus for efficiently measuring an arrival direction of an unknown radio wave by surely acquiring the unknown radio wave being a monitor object. <P>SOLUTION: A discrimination section 3 analyzes e.g., a frequency of a signal received by a reception antenna 1 and compares the frequency with a preset frequency to discriminate whether or not the signal is a received signal from a monitor object. When the discrimination section 3 discriminates the signal to be the signal of the monitor object, the discrimination section 3 supplies an arrival azimuth measurement command to an arbitration section 4 together with radio wave item data (frequency) of the received signal. The arbitration section 4 properly selects any of azimuth measurement sections 5 (51 to 5N) to measure the radio wave arrival azimuth among the plurality of azimuth measurement sections 5 (51 to 5N) and supplies the radio wave item data (frequency) and the azimuth measurement command to the selected azimuth measurement section. Thus, the arbitration section 4 receives the azimuth measurement result measured by any of the azimuth measurement sections 5 (51 to 5N) and supplies the result to a monitor console 6, which can estimate the azimuth or position of a transmission source and perform display or the like. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】 [0001]
【発明の属する技術分野】 BACKGROUND OF THE INVENTION
本発明は、到来する監視対象の電波を捉えて、その到来方位を測定する電波監視装置の改良に関する。 The present invention captures the radio waves monitored incoming relates to improvements in radio monitoring device for measuring the arrival direction.
【0002】 [0002]
【従来の技術】 BACKGROUND OF THE INVENTION
従来の電波監視装置は、位置を異にして複数箇所に設置されたセンサ局が、それぞれチャネル走査して到来電波の到来方向を測定し、センタ局が複数箇所のセンサ局から伝送されてくる受信復調信号や測定方位データ等に基づき、受信電波の到来方向や発射位置を推定するように構成されている(例えば、非特許文献1参照。)。 Conventional radio monitoring device, receives the sensor stations installed at a plurality of locations and different in position, respectively to measure the direction of arrival of incoming radio waves to the channel scan, the center station is transmitted from the sensor station at a plurality of positions based on the demodulated signal and measurement orientation data and is configured to estimate the direction of arrival and the firing position of the received radio waves (e.g., see non-Patent Document 1.).
【0003】 [0003]
その場合、センサ局自体は、受信した到来電波の周波数や復調信号等のいわゆる電波諸元とともに方位データをリアルタイムに得ることが要求されたので、電波諸元の分析機能と到来方向の測定機能とは一体不可分なものとして、ユニット内では同一ボード(基板)に組み込まれている。 In that case, the sensor station itself, so that with a so-called radio wave specifications such as frequency or demodulated signal arriving radio wave received obtaining orientation data in real time is requested, the function of measuring the arrival direction as Telecommunications specifications of analytics as the integral part, it is incorporated in the same board (substrate) in the unit.
【0004】 [0004]
従って、センサ局内において、もしも電波諸元の分析機能及び到来方向の測定機能のいずれか一方が故障等で停止すると、センサ局としての役割が果たし得なくなり、センタ局に対しては、電波諸元データ及び方位測定データのいずれも伝送されない。 Accordingly, in the sensor station, if the one of the radio specifications of analytical functions and DOA measurement functions is stopped by failure or the like, it will not give plays the role as a sensor station, for the center station, radio specifications both the data and the azimuth measurement data is not transmitted.
【0005】 [0005]
一方、電波監視装置のセンタ局では、センサ局からの方位測定データに基づき、方位のみならず監視対象電波の発信位置地点を推定しようとすると、少なくとも2箇所のセンサ局からその方位測定データを受ける必要があるが、方位測定データ数をより多くのセンサ局から得ることができれば、それだけ発信位置をより高い精度で推定することができる。 On the other hand, the center station of the radio monitoring device, based on the orientation measurement data from the sensor station, an attempt to estimate the transmission source location point of the monitored wave not orientation only, receiving the azimuth measurement data from at least two locations of the sensor stations it is necessary, if it is possible to obtain the more sensor stations azimuth measurement number of data can be estimated with high accuracy much outgoing position.
【0006】 [0006]
【非特許文献1】 Non-Patent Document 1]
「電子情報通信ハンドブック」(株)オーム社、平成11年4月25日、p1381 "Electronics, Information and Communication Handbook" (Ltd.) Ohm, Inc., 1999 April 25, p1381
【0007】 [0007]
【発明が解決しようとする課題】 [Problems that the Invention is to Solve
上記のように、従来の電波監視装置においては、到来電波を各センサ局においてチャネル走査しつつ受信し、測定された受信信号の到来方位データを周波数等の電波諸元データとともにセンタ局に送信するように構成されていた。 As described above, in the conventional radio monitoring device, the arriving radio waves received while scanning channels at each sensor station transmits the arrival direction data of the measured received signals to the center station with radio specification data such as the frequency It has been configured to.
【0008】 [0008]
ところで、電波の到来方位をどのようにして測定するかは、受信アンテナの構成に依存するところが大きい。 By the way, how to measure and the arrival direction of radio waves, largely depends on the receive antenna configuration. 指向性アンテナを機械的に回転走査し、その回転角度から受信信号の到来方位を得るのが簡明な方式であるが、アンテナの機械的な回転走査には時間を要し、タイムリに測定できない点に難点がある。 A directional antenna mechanically rotated scanning, is a concise manner to obtain the arrival direction of the received signal from the rotation angle, the mechanical rotational scan of the antenna takes time, that can not be measured in a timely manner there is a difficulty in.
【0009】 [0009]
その点、多数のアンテナ素子を例えば円周上に配置し、高速A/D変換回路や高速フーリエ変換回路を介して各アンテナ素子からの受信信号を位相比較する、いわゆる位相比較方式を採用すれば、比較的短時間に方位を測定できる利点がある。 That point, placing a number of antenna elements, for example, on the circumference, phase compare the received signal from each antenna element via a high-speed A / D converter and the fast Fourier transform circuit, by employing a so-called phase-comparison method an advantage of measuring the azimuth in a relatively short time. しかしこの方式では、多数のアンテナを相当距離隔てて配置する必要があるので、アンテナ構成の大型化及び複雑化は避けられない。 However, in this method, it is necessary to arrange a plurality of antennas corresponding distance apart, the size and complexity of the antenna configuration is inevitable.
【0010】 [0010]
より広い周波数帯域にわたって到来電波を監視しようとすると、上記いずれの方式においても、各センサ局全てが一様に、各受信局部発信器の出力周波数を多段階に切り替えてチャネル走査することになる。 When you try to monitor the incoming waves over a wide frequency band, In any of the above method, all the sensors stations uniformly, so that the channel scanning by switching the output frequency of the receiver local oscillator in multiple stages. 従って、電波監視装置全体として、方位測定処理の重複は避けられず、また広帯域にわたり到来電波の発信位置(発信源)を的確に推定し得るまでには相当の時間を要することとなったので監視効率が低下するという問題点があった。 Thus, the entire radio monitoring device, unavoidable overlapping azimuth measurement process, and because now it takes a considerable time before be accurately estimated outgoing position of the incoming radio waves (source) over a wide band monitoring efficiency there is a problem of a decrease.
【0011】 [0011]
そこで本発明は、簡単な構成により、広帯域にわたる多数の到来電波を効率良く監視可能な電波監視装置を提供することを目的とする。 The present invention is, with a simple configuration, and an object thereof is to provide a high efficiency can be monitored radio monitoring device a number of incoming waves over a wide band.
【0012】 [0012]
【課題を解決するための手段】 In order to solve the problems]
本発明の電波監視装置は、到来する電波を受信する受信アンテナと、この受信アンテナに接続された受信部と、この受信部に接続され、前記受信アンテナで受信された信号の電波諸元を分析し、予め設定された電波諸元と対比して、監視対象の受信信号であるか否かを判定するとともに、監視対象と判定された受信信号の電波諸元データ及び当該受信信号の到来方位測定指令を出力する判定部と、この判定部から出力された前記電波諸元データ及び到来方位測定指令を受信して、複数箇所に設置された方位測定部の中から監視対象とされた前記受信信号の到来方位を測定する方位測定部を選択して前記電波諸元データ及び到来方位測定指令を供給するとともに、当該方位測定部で測定された方位測定結果を導入する調停部とを具備することを Radio monitoring device of the present invention, analysis and receiving antenna for receiving the radio waves coming, and connected to the receiving unit to the receiving antenna, connected to the receiving unit, the radio specifications of the signal received by the receiving antenna and, in contrast to the pre-set radio specifications, with determining whether a received signal to be monitored, arrival direction measurement of radio wave is judged monitored received signal specification data and the received signal a determination unit for outputting a command, and receives the radio wave specification data and the arrival direction measurement command output from the determination unit, the received signal monitored from the azimuth measuring part installed in a plurality of locations together select an azimuth measurement unit for measuring the arrival direction of supplying the radio specification data and arrival direction measurement command, that includes the arbitration unit for introducing the azimuth measurement results measured in the direction measuring unit 徴とする。 And butterflies.
【0013】 [0013]
このように本発明の電波監視装置は、判定部において、予め受信された信号の電波諸元、たとえば周波数を分析し、その受信周波数信号が、監視対象の受信信号であるか否かを判定して、監視対象と判定された受信信号の到来方位測定指令をその電波諸元データ(周波数データ)とともに調停部に出力する。 Thus radio monitoring device of the present invention, the determining unit analyzes the radio wave specifications, for example, the frequency of the previously received signal, the received frequency signal, determines whether the received signal to be monitored Te, and outputs the arrival direction measurement command of the received signal is determined to be monitored to the arbitration unit along with the radio specification data (frequency data).
【0014】 [0014]
判定部から到来方位測定指令及び対応する電波諸元データ(周波数データ)の供給を受けた調停部は、その判定部からの到来方位測定指令及び電波諸元データ(周波数データ)を、複数箇所の方位測定部のうち選択した方位測定部に供給するように構成したので、選択された方位測定部のみが電波諸元データ(周波数データ)に基づいた方位測定操作を実行することができる。 Arbitration unit which receives the supply of electric wave specification data arrival direction measurement command and corresponding from the determination section (frequency data), the arrival direction measurement command, and a radio specification data from the judgment unit (frequency data), the plurality of locations and then, is supplied to the azimuth measuring unit selected among the azimuth measuring unit can only azimuth measuring unit selected to perform the azimuth measurement operation based on radio specification data (frequency data).
【0015】 [0015]
従って、全ての方位測定部が、一様に、監視すべき広い帯域を逐一走査する無駄を省くことができるので、装置全体として効率良い電波監視が可能である。 Therefore, all of the azimuth measuring unit, uniformly, it is possible to avoid waste of minutely scanning the wide band to be monitored, it is possible efficient radio monitoring device as a whole.
【0016】 [0016]
【発明の実施の形態】 DETAILED DESCRIPTION OF THE INVENTION
以下、本発明による電波監視装置の一実施の形態を図1ないし図3を参照して詳細に説明する。 Hereinafter, an embodiment of radio monitoring device according to the present invention with reference to FIGS. 1 to 3 will be described in detail.
【0017】 [0017]
図1は、本発明による電波監視装置の一実施の形態を示した構成図である。 Figure 1 is a block diagram showing an embodiment of a radio monitoring device according to the present invention.
【0018】 [0018]
すなわち、到来する電波を受信する無指向性で広帯域な受信アンテナ1が設置され、この受信アンテナ1には受信部2が接続されている。 That is, wide-band receiving antenna 1 is installed in a non-directional receiving the radio waves coming, the receiving unit 2 is connected to the receiving antenna 1.
【0019】 [0019]
受信部2は、図2に示したように、受信アンテナ1からの受信高周波信号を増幅する高周波増幅器21と、受信高周波信号を中間周波数(IF)に変換するミキサ回路22及び可変局部発信器23と、IF信号に含む不要波成分を除去して増幅するIFフィルタ24及びIF増幅回路25と、増幅されたIF信号を導入して検波する検波回路26とから構成される。 Receiving unit 2, as shown in FIG. 2, the high-frequency amplifier 21 for amplifying a received high-frequency signal from the receiving antenna 1, a mixer circuit 22 and the variable local oscillator 23 to convert the received RF signal to an intermediate frequency (IF) When, an IF filter 24 and IF amplifying circuit 25 for amplifying to remove undesired wave components including the IF signal, and a detection circuit 26 for detecting the introduction of amplified IF signal. また、検波回路26から得られる受信アンテナ1で受信された高周波信号の検波出力信号は、スイッチング回路27に供給されるとともに、到来電波検出信号として次の判定部3にも出力供給される。 Further, the detection output signal of the received RF signal by the receiving antenna 1 which is obtained from the detection circuit 26 is supplied to the switching circuit 27, is also output fed to the next decision unit 3 as the incoming radio detection signal.
【0020】 [0020]
スイッチング回路27には、可変局部発信器23の局発周波数信号が供給され、その局発周波数信号は、検波回路26からの検波出力信号に基づくON制御を受けて、判定部3に出力供給される。 The switching circuit 27, local oscillation frequency signal of the variable local oscillator 23 is supplied, the local oscillator frequency signal, receives the ON control based on the detection output signal from the detection circuit 26, is output supplied to decision unit 3 that. つまり、スイッチング回路27には、検波回路26の検波出力信号が供給されてはじめて、その受信信号に対応した局発周波数信号がスイッチング回路27を介して判定部3に供給され、受信アンテナ1で受信されないチャネルの局発周波数信号が判定部3に供給されないように構成されている。 That is, the switching circuit 27 is supplied the detection output signal of the detection circuit 26 for the first time, the local oscillation frequency signal corresponding to the received signal is supplied to the determination unit 3 through the switching circuit 27, received by the receiving antenna 1 local oscillation frequency signal of the channel which is not is configured so as not to be supplied to the judgment unit 3.
【0021】 [0021]
判定部3は、図3示すように、受信部2のスイッチング回路27に接続された周波数変換回路31、照合回路32、既知周波数テーブル33、及び受信部2の検波回路26に接続された選択回路34から構成されている。 Determination unit 3, as shown FIG. 3, the frequency converting circuit 31 connected to the switching circuit 27 of the receiving unit 2, the matching circuit 32, a known frequency table 33, and connected to the selection circuit to the detection circuit 26 of the receiving section 2 and a 34.
【0022】 [0022]
上記のように、受信部2の検波回路26において到来電波の検波出力信号が得られると、スイッチング回路27を介して、対応する局発周波数信号が判定部3の周波数変換回路31に供給される。 As described above, when the detection output signal of the radio waves coming in the detection circuit 26 of the receiving part 2 is obtained, through the switching circuit 27, the corresponding local oscillation frequency signal is supplied to the frequency conversion circuit 31 of the determination unit 3 . この周波数変換回路31は、供給された局発周波数をその局発周波数に対応した受信高周波信号周波数に変換し、その変換周波数データを照合回路32に供給するように構成されている。 The frequency conversion circuit 31 converts the reception RF signal frequency corresponding to the supplied local oscillator frequency to the local oscillator frequency, and is configured to supply the converted frequency data to the matching circuit 32.
【0023】 [0023]
照合回路32では、周波数変換回路31からの変換周波数データと、既知周波数テーブル33から読み出された既知の周波数データとの比較が行われる。 The matching circuit 32, and converts the frequency data from the frequency conversion circuit 31, compared with the known frequency data read from the known frequency table 33 is performed. すなわち、既知周波数テーブル33には、受信アンテナ1での受信され得る既知の周波数信号のデータが予めROM等に記憶されているので、照合回路32における読み出し照合により、不一致な信号データ、すなわち既知信号として登録されていない監視対象となる未知の変換周波数データのみが、監視対象の電波諸元(周波数)データ信号として、選択回路34並びに次の調停部4に供給される。 That is, the known frequency table 33, the data of the known frequency signal that may be received at the receiving antenna 1 is stored in advance in ROM or the like, the read verification in verification circuit 32, mismatched signal data, i.e. the known signal only the unknown transformation frequency data to be monitored which is not registered as is as a radio wave specifications (frequency) data signal to be monitored is supplied to the selection circuit 34 and the next arbitration unit 4.
【0024】 [0024]
選択回路34に供給された照合回路32の出力信号は、受信部2の検波回路26で検波出力された信号を選択し、これを到来方位測定指令信号として同じく調停部4に供給される。 The output signal of the supplied to the selection circuit 34 matching circuit 32 selects a signal detected output by the detection circuit 26 of the receiving portion 2, is also supplied to the arbitration unit 4 this as arrival direction measurement command signal.
【0025】 [0025]
このように本実施の形態において、判定部3は、受信アンテナ1で受信された電波の電波諸元、すなわちたとえば周波数を可変局部発信器23における局発信号に基づいて捕捉し、照合回路32において、既知周波数テーブル33に予め設定登録された周波数と対比して照合するので、監視対象の受信信号であるか否かは自動的に判定され、その監視対象の電波諸元(周波数)データ信号及びその到来方位測定指令信号が調停部4に供給される。 Thus, in the present embodiment, the determination unit 3, radio specifications of the radio waves received by the receiving antenna 1, i.e. for example the frequency captured based on the local oscillation signal of the variable local oscillator 23, the matching circuit 32 since match by comparing with a preset registered frequency in the known frequency table 33, whether or not the reception signal to be monitored is determined automatically, the radio specifications of the monitored (frequency) data signal and its arrival direction measurement command signal is supplied to the arbitration unit 4.
【0026】 [0026]
判定部3から監視対象の電波諸元(周波数)データ信号及びその到来方位測定指令信号を導入した調停部4は、いわゆる選択回路を形成し、図1に示すように接続された互いに間隔を隔てて複数(N)箇所に設置された方位測定部5(51〜5N)の中から、当該電波諸元(周波数)データ及び到来方位測定指令信号を受信した電波の方位測定操作を実行する方位測定部を選択するとともに、方位測定部からの測定データを監視卓6に供給する機能を有するように構成されている。 Arbitration unit 4 by introducing a radio wave specifications (frequency) data signal and the arrival direction measurement command signal that monitored from the determination unit 3 forms a so-called selective circuit, across the connected distance from each other as shown in FIG. 1 azimuth measurement to perform from among a plurality (N) direction measuring unit 5 is installed at a location (51 to 5N), radio azimuth measurement operation which has received the radio wave specifications (frequency) data and the arrival direction measurement command signal Te with selecting section is configured to have a function of supplying measurement data from the orientation measurement unit to the monitoring console 6.
【0027】 [0027]
すなわち、調停部4は、複数(N)箇所の方位測定部5(51〜5N)の中から監視対象とされた受信信号の到来方位を測定すべき任意の方位測定部、例えば方位測定部51を選択し、その選択した方位測定部51に対し、電波諸元(周波数)データ及び方位測定指令信号を供給する。 That is, the arbitration unit 4, a plurality (N) any direction measuring unit to be measured arrival direction monitored and received signals from the azimuth measuring part 5 of the locations (51 to 5N), for example, the orientation measurement unit 51 select, to azimuth measurement unit 51 that selects and supplies the radio wave specifications (frequency) data and orientation measurement command signal.
【0028】 [0028]
なお、互いに間隔を隔てて複数(N)箇所に設置された各方位測定部5(51〜5N)は、いずれも同一構成からなり、図1に示したように、測定部5a、受信部5b、及び方位受信アンテナ5cとから構成される。 Note that the plurality (N) each orientation measuring unit 5 disposed at a location (51 to 5N) are spaced apart from each other, both made of the same configuration, as shown in FIG. 1, the measurement unit 5a, the receiving unit 5b , and composed of a bearing receiving antenna 5c. そこで、調停部4を介して、到来方位測定指令信号及び電波諸元(周波数)データを受けた当該方位測定部51は、改めてチャネル走査を行うまでもなく、その特定された電波諸元(周波数)すなわちチャネルに基づく到来電波の方位測定操作を迅速に行い、その方位測定結果を、対応する電波諸元(周波数)データとともに、調停部4を介して監視卓6に供給する。 Therefore, via the arbitration unit 4, the arrival direction measurement command signal and a radio specifications (frequency) the orientation measurement unit 51 which has received the data, without performing a re-channel scan, radio specifications (frequency which is the specific ) that quickly perform the azimuth measurement operation of the arriving radio waves based on a channel, and supplies the result thereof azimuth measurements, together with the corresponding radio specifications (frequency) data, the monitoring console 6 via the arbitration unit 4.
【0029】 [0029]
監視卓6は、従来の制御・処理卓と同様に、地理上の地図記憶部を備え、その地図記憶部には各方位測定部5(51〜5N)の設置位置が予め記憶されているので、各方位測定部5(51〜5N)からの測定結果を、対応する電波諸元データとともに、捕捉した監視対象電波の到来方向を地図上に表示して、到来方向及びその信号の発信位置の推定を行うことができる。 Monitoring console 6, like the conventional control and processing console includes a map storage section on geography, since the the map storage unit installation position of the azimuth measuring unit 5 (51 to 5N) are stored in advance the measurements from the direction measuring unit 5 (51 to 5N), with corresponding radio specification data, the arrival direction of the captured monitored wave displayed on the map, the originating location of the arrival direction and the signal estimation can be performed.
【0030】 [0030]
従って、もしも、3箇所(Nが3)以上に方位測定部5(51〜5N)が設置され、調停部4がその3箇所以上の方位測定部5(51〜5N)のうち、少なくとも2箇所以上の方位測定部5(51〜5N)を選択して、方位測定指令を出力し、各方位測定結果が監視卓6に供給されるとすれば、従来と同様に、2次元座標軸の地図上で受信電波の発信位置を推定することができる。 Accordingly, if, places 3 (N 3) or direction measuring unit 5 (51 to 5N) is disposed, out of the arbitration unit 4 that three or more bearing measurement section 5 (51 to 5N), at least two locations select more azimuth measuring section 5 (51 to 5N), and outputs the azimuth measurement command, if the azimuth measurement result is supplied to the monitoring console 6, in a conventional manner on a 2-dimensional coordinate axes map in it is possible to estimate the outgoing position of the received radio wave.
【0031】 [0031]
なお、調停部4は、複数(N)箇所に設置した方位測定部5(51〜5N)の中からいずれかの方位測定部5を選択し、その選択した方位測定部5に対し、到来方位測定すべき電波の電波諸元データ及び方位測定指令を供給するものであるが、調停部4には予め、方位測定中であるか否かの情報が各方位測定部5(51〜5N)から調停部4に供給されていて、調停部4は、その方位測定部5(51〜5N)から供給された情報に基づいて、現在、方位測定中ではない方位測定部、すなわち「空き」方位測定部5を適宜選択して、装置全体として効率の良い電波監視を実行することができる。 Incidentally, the arbitration unit 4 selects an azimuth measuring part 5 of the one out of a plurality (N) direction measuring unit 5 is installed at a location (51 to 5N), with respect to the orientation measurement unit 5 which is the selected arrival direction but it is intended to supply the radio wave of the radio wave specification data and orientation measurement command to be measured, the arbitration unit 4 in advance, whether it is in the azimuth measurement information from the azimuth measuring part 5 (51 to 5N) have been supplied to the arbitration unit 4, the arbitration unit 4, based on the information supplied from the azimuth measuring part 5 (51 to 5N), currently direction measuring unit not in azimuth measurement, i.e. "free" direction measuring part 5 suitably selects and can execute efficient radio monitoring device as a whole. なお、各方位測定部5(51〜5N)は、判定部3から供給されるいかなる監視対象の電波諸元(周波数)データにも対応して、方位測定できるように受信チャネルが構成されているので、各方位測定部5(51〜5N)はいずれも、調停部4を介して同時に供給される複数の各到来方位測定指令信号に対しても、チャネル切換えによる時分割処理により、複数の方位測定処理をリアルタイムに実行することができる。 Each direction measuring unit 5 (51 to 5N) are also compatible with radio specifications (frequency) data of any monitored supplied from the determination unit 3, the receiving channel is configured to allow azimuth measurement since, both the azimuth measuring unit 5 (51 to 5N) also for a plurality of the arrival direction measurement command signal supplied simultaneously via the arbitration unit 4, the time division processing by the channel switching, a plurality of orientation the measurement process can be performed in real time.
【0032】 [0032]
従って、調停部4は、判定部3、各方位測定部5(51〜5N)、及び監視卓6との間をLANあるいはWAN構成によるネットワーク化した接続構成で実現し、各部における処理負荷状態を監視しつつ、方位測定処理要求を選択して割り振るいわゆるルーティング機能を採用することができる。 Thus, the arbitration unit 4, the determination unit 3, the direction measuring unit 5 (51 to 5N), and implemented by networked connection configuration by LAN or WAN configuration between monitoring console 6, the processing load status in each part while monitoring, it can be adopted a so-called routing function to allocate and select the orientation measurement processing request.
【0033】 [0033]
なお、上記実施の形態の説明において、受信部2及び判定部3の構成をハードウエアで構成して受信電波を検出する例を説明したが、受信信号をソフトウェアで処理し、アルゴリズムによる処理演算により受信電波を検出することもできる。 In the description of the above embodiments, a description has been given of an example of detecting a received radio wave configuration of the receiving unit 2 and the judgment part 3 constituted by hardware, processes the received signals in software, the processing operation by the algorithm it is also possible to detect the received radio wave. すなわち、A/D変換後のIF信号にFFT処理を施した後、信号処理回路に供給し、デジタル信号処理(DSP:Digital Signal Processing)により、受信中心周波数やその占有周波数帯域幅を検出するようにすることもできる。 That is, after performing the FFT processing to the IF signal after A / D conversion, and supplies to the signal processing circuit, digital signal processing: by (DSP Digital Signal Processing), to detect the receiving central frequency and its occupied bandwidth it is also possible to to. またさらに、上記信号処理回路にスライディングウィンドウを組み込み構成し、時間軸上で得られる周波数スペクトルの連続性や対称性から、受信電波の変調方式を推定し、周波数に加えて、受信電波が監視対称の変調方式か否かの判定結果を加味した到来方位測定指令を調停部4に供給するように構成することもできる。 Furthermore, the signal processing circuit a sliding window is built configuration from the continuity and symmetry of the frequency spectrum obtained on the time axis to estimate the modulation system of the received radio waves, in addition to frequency, the received radio wave monitoring symmetry it is also possible to configure the arrival direction measurement command in consideration of the modulation scheme of determining whether the result to supply to the arbitration unit 4.
【0034】 [0034]
また、上記実施の形態において、判定部3では、監視対称以外の電波を既知周波数テーブル33に登録し、照合回路32は不一致信号を監視対象の電波と捉えて調停部4に対して到来方位測定指令を供給したが、反対に監視対称の電波を予め登録し、当該電波が受信されたときにその電波に対する到来方位測定指令を出力するように構成しても、同様な効果を得ることができる。 Further, in the above embodiment, the determination unit 3, and registers the radio waves other than the monitoring symmetric known frequency table 33, the matching circuit 32 arrival direction measured for arbitration unit 4 captures the disagreement signal and radio monitored was supplied command registered in advance radio wave monitoring symmetrically opposite, it is configured to output the arrival direction measurement command for the radio wave when the radio wave is received, it is possible to obtain the same effect .
【0035】 [0035]
いずれにしても、本発明によれば、調停部4を介して、複数の方位測定部5及び、受信アンテナ1、受信部2、判定部3からなる監視電波検知部を接続構成したので、監視電波検知部の増設はもとより、方位測定部5の増設にも柔軟に対応することができ拡張性及び冗長性に富んだ電波監視システムを実現することができる。 Anyway, according to the present invention, via the arbitration unit 4, a plurality of azimuth measurement portion 5 and the receiving antenna 1, the receiving unit 2, since the connection configuration of the monitoring wave detection unit consisting determination unit 3, the monitoring expansion of the radio wave detection portion as well, it is possible to realize a radio monitoring system rich in extensibility and redundancy can respond flexibly to expansion of the azimuth measuring unit 5.
【0036】 [0036]
【発明の効果】 【Effect of the invention】
以上説明のように、本発明の電波監視装置によれば、電波諸元分析操作の分離独立により、捕捉した多数の監視対象電波に対し、簡単な構成で迅速な方位測定操作を効率良く実施することができる。 As described above, according to the radio monitoring device of the present invention, the separation independent radio specifications analysis operations with respect to the captured number of monitored radio efficiently carried to the rapid direction measuring operations with a simple configuration be able to.
【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS
【図1】本発明による電波監視装置の一実施の形態を示す構成図である。 1 is a configuration diagram showing an embodiment of a radio monitoring device according to the present invention.
【図2】図1に示す受信部の回路構成図である。 2 is a circuit diagram of a receiver shown in FIG.
【図3】図1に示す判定部の回路構成図である。 3 is a circuit diagram of a determination unit shown in FIG.
【符号の説明】 DESCRIPTION OF SYMBOLS
1 受信アンテナ2 受信部3 判定部4 調停部5(51〜5N) 方位測定部6 監視卓 1 receive antenna 2 receiving unit 3 determination section 4 arbitration unit 5 (51 to 5N) direction measuring unit 6 monitor console

Claims (5)

  1. 到来する電波を受信する受信アンテナと、 A receiving antenna for receiving the radio waves coming,
    この受信アンテナに接続された受信部と、 A receiving unit connected to the receiving antenna,
    この受信部に接続され、前記受信アンテナで受信された信号の電波諸元を分析し、予め設定された電波諸元と対比して、監視対象の受信信号であるか否かを判定するとともに、監視対象と判定された受信信号の電波諸元データ及び当該受信信号の到来方位測定指令を出力する判定部と、 Connected to the receiving unit analyzes the radio wave specifications of the signal received by the receiving antenna, in contrast to the pre-set radio specifications, with determining whether a received signal to be monitored, a determination unit for outputting arrival direction measurement command of a radio wave is determined that the monitored received signal specification data and the received signal,
    この判定部から出力された前記電波諸元データ及び到来方位測定指令を受信して、複数箇所に設置された方位測定部の中から監視対象とされた前記受信信号の到来方位を測定する方位測定部を選択して前記電波諸元データ及び到来方位測定指令を供給するとともに、当該方位測定部で測定された方位測定結果を導入する調停部とを具備することを特徴とする電波監視装置。 It receives the radio wave specification data and the arrival direction measurement command output from the determination unit, the orientation measurement for measuring the arrival direction of the received signal monitored from the azimuth measuring part installed in a plurality of locations It supplies the radio specification data and the arrival direction measurement command by selecting the parts, radio monitoring apparatus characterized by comprising an arbitration unit for introducing the azimuth measurement result measured in the direction measuring unit.
  2. 前記調停部は、前記3箇所以上に設置された方位測定部のうち、少なくとも2箇所以上の方位測定部に前記電波諸元データ及び到来方位測定指令を出力するように構成されたことを特徴とする請求項1に記載の電波監視装置。 The arbitration unit, of the direction measuring unit which is disposed above the three, and characterized in that it is configured to output the radio wave specification data and the arrival direction measurement command into at least two or more positions of the azimuth measuring unit radio monitoring device according to claim 1.
  3. 前記電波諸元データは、周波数であることを特徴とする請求項1または2に記載の電波監視装置。 The Telecommunications specification data, radio monitoring device according to claim 1 or 2, characterized in that the frequency.
  4. 前記複数箇所に設置された方位測定部は、到来方位測定中であるか否かの情報を前記調停部に供給するように構成され、 The azimuth measuring part installed in a plurality of places is constructed of whether being arrival direction measurement information to supply to the arbitration unit,
    前記調停部は、前記方位測定部から供給された前記情報に基づいて、前記電波諸元データ及び到来方位測定指令を供給する方位測定部を選択するように構成されたことを特徴とする請求項1ないし3のうちのいずれか1項に記載の電波監視装置。 Claim wherein the arbitration unit, which based on the information supplied from the azimuth measuring unit, characterized in that it is configured to select the radio specification data and orientation measuring unit supplies the arrival direction measurement command 1 to radio monitoring device according to any one of the three.
  5. 2箇所以上の方位測定部からの方位測定結果を前記調停部から導入して、前記監視対象とされた受信信号の発信位置を推定する監視卓を設けたことを特徴とする請求項1ないし4のうちのいずれか1項に記載の電波監視装置。 The orientation measurements from two or more locations of the direction measuring unit introduced from the arbitration unit, claims 1, characterized in that a monitoring console for estimating the outgoing position of the monitoring target reception signal 4 radio monitoring device according to any one of the.
JP2002381465A 2002-12-27 2002-12-27 Radio wave monitoring apparatus Pending JP2004214917A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007127549A (en) * 2005-11-04 2007-05-24 Toyota Motor Corp Radio wave detecting apparatus
JP2007248110A (en) * 2006-03-14 2007-09-27 Nec Corp Device and method for monitoring electric wave

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007127549A (en) * 2005-11-04 2007-05-24 Toyota Motor Corp Radio wave detecting apparatus
JP2007248110A (en) * 2006-03-14 2007-09-27 Nec Corp Device and method for monitoring electric wave
US7791537B2 (en) 2006-03-14 2010-09-07 Nec Corporation Radio monitoring apparatus and method

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