JP2004286445A

JP2004286445A - Guidance apparatus

Info

Publication number: JP2004286445A
Application number: JP2003075286A
Authority: JP
Inventors: Chikafusa Nonaka; 親房野中; Naruhiro Nakamura; 考博中村
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2003-03-19
Filing date: 2003-03-19
Publication date: 2004-10-14

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems wherein guidance to a target cannot be performed since a target having a large received power is determined as the target in the case of the presence of interferences by jamming waves outputted from a jammer at target search, detection, and tracking in a conventional guidance apparatus and that it is necessary to improve the provability of selecting the target under condition that the jamming waves outputted from the jammer are present. <P>SOLUTION: In the guidance apparatus of this invention, transmission waves are radiated from the guidance apparatus 1 toward the jamming waves outputted from the target 5 and the jammer. A synthetic band is created from reception signals to improve distance resolution. The guidance apparatus 1 selects the target 5 on the basis of the determination results of shape determination, velocity determination, and power determination, and a missile to which the guidance apparatus 1 is mounted is guided toward the target 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
この発明は、ジャミング環境下において、当該ジャミングの影響を受けることなく、例えば飛しょう体のような誘導対象を目標へ誘導する誘導装置に関するものである。
【０００２】
【従来の技術】
従来の誘導装置は、目標検出、目標分別の精度が悪く、また予め飛しょう体発射前に指定目標の選択ができなかった。クラッタ、島、ジャマ、複数目標を分別し、外部からのマップデータと照合し、指定目標を特定する。特定不可の時は複数目標を追尾し、特定可の時、相対角進入角演算処理により、予め定められた進入角になるように誤差角度及び誘導信号を演算する方式が知られている（例えば、特許文献１参照。）。
【０００３】
【特許文献１】
特開２０００−６５９２５号公報（第１図）
【０００４】
【発明が解決しようとする課題】
上記のような従来の誘導装置では、受信波に目標からの反射波、ジャマから出力されたジャミング波が存在する場合、受信電力が大きいものを目標と判定していたため、目標及びジャマから出力されたジャミング波の区別がつかず、飛しょう体をジャミング波に誘導してしまい、目標へ誘導できないという問題がある。
【０００５】
この発明は、かかる問題点を解決するためになされたものであり目標からの反射波とジャマから出力されたジャミング波の識別、選択能力を向上させ、目標からの反射波、ジャマから出力されたジャミング波から目標の情報を検出し、目標へ誘導対象を誘導することを目的とする。
【０００６】
【課題を解決するための手段】
第１の発明による誘導装置は、Ｎ個のＲＦ帯連続信号とローカル信号を生成する局部発振部と、前記ＲＦ帯連続信号を予め定められたパルス変調信号により入り切りして送信パルス信号を生成する送信部と、空間に電波を放射し、目標からの反射波及びジャマから出力されたジャミング波の振幅、位置情報を含むＳＵＭ受信信号とＤＩＦ受信信号を生成するアンテナ部と、前記出力された時系列のＳＵＭ受信信号とＤＩＦ受信信号を局部発振部から出力されたローカル信号で周波数変換、位相検波し、目標からの反射波及びジャマから出力されたジャミング波の振幅、位置情報を含む時系列のＳＵＭビデオ信号とＤＩＦビデオ信号に変換する受信部と、前記ＳＵＭビデオ信号とＤＩＦビデオ信号をディジタルビデオ信号に変換するＡ／Ｄ変換部と、前記信号を目標からの反射波及びジャマから出力されたジャミング波の振幅、位置情報を含むＮ個のＳＵＭビデオ信号とＮ個のＤＩＦビデオ信号の逆周波数解析を実施し、高距離分解された目標及びジャマから出力されたジャミング波のレンジプロファイルとして合成帯域狭ＳＵＭパルス信号及び合成帯域ＤＩＦパルス信号を出力する合成帯域部と、前記合成帯域狭ＳＵＭパルス信号を予め定められたスレッショルドで目標からの反射波及びジャマから出力されたジャミング波を検出する検出部と、前記検出部から検出された目標及びジャマから出力されたジャミング波のレンジプロファイル情報を予め保持しているジャミング形状を用いて形状判定し目標及びジャマから出力されたジャミング波を識別する形状判定部と、前記形状判定部から検出された判定結果から目標を選択する目標選択部と、前記合成帯域部からの合成帯域狭ＳＵＭパルス信号及び合成帯域ＤＩＦパルス信号をアンテナ部主軸と目標との角度誤差を演算する角度検出部と、前記角度誤差から誘導信号を演算出力する誘導信号計算部を備えたものである。
【０００７】
また、第２の発明による誘導装置は、Ｎ個のＲＦ帯連続信号とローカル信号を生成する局部発振部と、前記ＲＦ帯連続信号を予め定められたパルス変調信号により入り切りして送信パルス信号を生成する送信部、空間に電波を放射し、目標からの反射波及びジャマから出力されたジャミング波の振幅、位置情報を含むＳＵＭ受信信号とＤＩＦ受信信号を生成するアンテナ部と、前記出力された時系列のＳＵＭ受信信号とＤＩＦ受信信号を局部発振部から出力されたローカル信号で周波数変換、位相検波し、目標からの反射波及びジャマから出力されたジャミング波の振幅、位置情報を含む時系列のＳＵＭビデオ信号とＤＩＦビデオ信号に変換する受信部と、前記ＳＵＭビデオ信号とＤＩＦビデオ信号をディジタルビデオ信号に変換するＡ／Ｄ変換部と、前記信号を目標からの反射波及びジャマから出力されたジャミング波の振幅、位置情報を含むＮ個のＳＵＭビデオ信号とＮ個のＤＩＦビデオ信号の逆周波数解析を実施し、高距離分解された目標及びジャマから出力されたジャミング波のレンジプロファイルとして合成帯域狭ＳＵＭパルス信号及び合成帯域ＤＩＦパルス信号を出力する合成帯域部と、前記合成帯域狭ＳＵＭパルス信号を予め定められたスレッショルドで目標からの反射波及びジャマから出力されたジャミング波を検出する検出部と、前記検出部から検出された目標及びジャマから出力されたジャミング波のレンジプロファイル情報を予め保持しているジャミング形状を用いて形状判定し目標及びジャマから出力されたジャミング波を識別する形状判定部と、前記検出部から検出された目標及びジャマから出力されたジャミング波のレンジプロファイル情報を、予め定められた速度判定レベルを用いて目標及びジャマから出力されたジャミング波を識別する速度判定部と、前記形状判定部と速度判定部から検出された判定結果から目標を選択する目標選択部と、前記合成帯域部からの合成帯域狭ＳＵＭパルス信号及び合成帯域ＤＩＦパルス信号をアンテナ部主軸と目標との角度誤差を演算する角度検出部と、前記角度誤差から誘導信号を演算出力する誘導信号計算部
を備えたものである。
【０００８】
また、第３の発明による誘導装置は、Ｎ個のＲＦ帯連続信号とローカル信号を生成する局部発振部と、前記ＲＦ帯連続信号を予め定められたパルス変調信号により入り切りして送信パルス信号を生成する送信部と、空間に電波を放射し、目標からの反射波及びジャマから出力されたジャミング波の振幅、位置情報を含むＳＵＭ受信信号とＤＩＦ受信信号を生成するアンテナ部と、前記出力された時系列のＳＵＭ受信信号とＤＩＦ受信信号を局部発振部から出力されたローカル信号で周波数変換、位相検波し、目標からの反射波及びジャマから出力されたジャミング波の振幅、位置情報を含む時系列のＳＵＭビデオ信号とＤＩＦビデオ信号に変換する受信部と、前記ＳＵＭビデオ信号とＤＩＦビデオ信号をディジタルビデオ信号に変換するＡ／Ｄ変換部と、前記信号を目標からの反射波及びジャマから出力されたジャミング波の振幅、位置情報を含むＮ個のＳＵＭビデオ信号とＮ個のＤＩＦビデオ信号の逆周波数解析を実施し、高距離分解された目標及びジャマから出力されたジャミング波のレンジプロファイルとして合成帯域狭ＳＵＭパルス信号及び合成帯域ＤＩＦパルス信号を出力する合成帯域部と、前記合成帯域狭ＳＵＭパルス信号を予め定められたスレッショルドで目標からの反射波及びジャマから出力されたジャミング波を検出する検出部と、前記検出部から検出された目標及びジャマから出力されたジャミング波のレンジプロファイル情報を予め保持しているジャミング形状を用いて形状判定し目標及びジャマから出力されたジャミング波を識別する形状判定部と、前記検出部から検出された目標及びジャマから出力されたジャミング波のレンジプロファイル情報を、予め定められた電力判定レベルを用いて目標及びジャマから出力されたジャミング波を識別する電力判定部と、前記形状判定部と電力判定部から検出された判定結果から目標を選択する目標選択部と、前記合成帯域部からの合成帯域狭ＳＵＭパルス信号及び合成帯域ＤＩＦパルス信号をアンテナ部主軸と目標との角度誤差を演算する角度検出部と、前記角度誤差から誘導信号を演算出力する誘導信号計算部
を備えたものである。
【０００９】
また、第４の発明による誘導装置は、Ｎ個のＲＦ帯連続信号とローカル信号を生成する局部発振部と、前記ＲＦ帯連続信号を予め定められたパルス変調信号により入り切りして送信パルス信号を生成する送信部と、空間に電波を放射し、目標からの反射波及びジャマから出力されたジャミング波の振幅、位置情報を含むＳＵＭ受信信号とＤＩＦ受信信号を生成するアンテナ部と、前記出力された時系列のＳＵＭ受信信号とＤＩＦ受信信号を局部発振部から出力されたローカル信号で周波数変換、位相検波し、目標からの反射波及びジャマから出力されたジャミング波の振幅、位置情報を含む時系列のＳＵＭビデオ信号とＤＩＦビデオ信号に変換する受信部と、前記ＳＵＭビデオ信号とＤＩＦビデオ信号をディジタルビデオ信号に変換するＡ／Ｄ変換部と、前記信号を目標からの反射波及びジャマから出力されたジャミング波の振幅、位置情報を含むＮ個のＳＵＭビデオ信号とＮ個のＤＩＦビデオ信号の逆周波数解析を実施し、高距離分解された目標及びジャマから出力されたジャミング波のレンジプロファイルとして合成帯域狭ＳＵＭパルス信号及び合成帯域ＤＩＦパルス信号を出力する合成帯域部と、前記合成帯域狭ＳＵＭパルス信号を予め定められたスレッショルドで目標からの反射波及びジャマから出力されたジャミング波を検出する検出部と、前記検出部から検出された目標及びジャマから出力されたジャミング波のレンジプロファイル情報を予め保持しているジャミング形状を用いて形状判定し目標及びジャマから出力されたジャミング波を識別する形状判定部と、前記検出部から検出された目標及びジャマから出力されたジャミング波のレンジプロファイル情報を、予め定められた速度判定レベルを用いて目標及びジャマから出力されたジャミング波を識別する速度判定部と、前記検出部から検出された目標及びジャマから出力されたジャミング波のレンジプロファイル情報を、予め定められた電力判定レベルを用いて目標及びジャマから出力されたジャミング波を識別する電力判定部と、前記形状判定部と速度判定部及び電力判定部から検出された判定結果から目標を選択する目標選択部と、前記合成帯域部からの合成帯域狭ＳＵＭパルス信号及び合成帯域ＤＩＦパルス信号をアンテナ部主軸と目標との角度誤差を演算する角度検出部と、前記角度誤差から誘導信号を演算出力する誘導信号計算部を備えたものである。
【００１０】
【発明の実施の形態】
実施の形態１．
図１と図２と図３はこの発明の実施の形態１を示す構成図と運用図と目標判定図である。
図１において、１は飛しょう体Ｍ前部に搭載された誘導装置であり、２はＲＦ帯連続信号とローカル信号を生成する局部発振部、３は局部発信部２からのＲＦ帯連続信号を予め定められたパルス変調信号に基づいて入切りして送信パルス信号を生成する送信部である。
【００１１】
また、４は空間に電波を放射し、当該空間中に存在する目標からの反射波、及び当該目標等に設置されたジャマから出力されたジャミング波を受信し、この反射波とジャミング波に対し、各受信波毎に振幅、位置情報を含むＳＵＭ（正式名称）受信信号及びＤＩＦ（正式名称）受信信号を生成するアンテナ部を示す。
【００１２】
そして、６は前記出力された時系列のＳＵＭ受信信号とＤＩＦ受信信号を局部発振部から出力されたローカル信号で周波数変換、位相検波し、目標からの反射波及びジャマから出力されたジャミング波の振幅、位置情報を含む時系列のＳＵＭビデオ信号とＤＩＦビデオ信号に変換する受信部を示す。
【００１３】
７は前記ＳＵＭビデオ信号とＤＩＦビデオ信号をディジタルビデオ信号に変換するＡ／Ｄ変換部、８は前記信号を予め定められたスレッショルドで目標からの反射波及びジャマから出力されたジャミング波を検出する検出部、９は検出部から出力された目標及びジャマから出力されたジャミング波の受信電力を用いて大きいものを選択する最大電力判定部、１０はアンテナ部主軸と目標との角度誤差を演算する角度検出部、１１は前記角度誤差から誘導対象を誘導するための誘導信号を演算出力する誘導信号計算部である。
この例では、誘導対象を飛しょう体Ｍとする。
【００１４】
１４は検出部から検出された目標及びジャマから出力されたジャミング波のレンジプロファイル情報を予め保持しているジャミング形状を用いて形状判定し目標及びジャマから出力されたジャミング波を識別する形状判定部、１５は形状判定部から検出された判定結果から目標を選択する目標選択部である。
【００１５】
この動作を図１と図２と図３に基づいて説明する。
図２は運用図を示すもので、１は誘導装置、Ｍは誘導装置１を搭載した飛しょう体、５は目標、Ｊはジャマである。
【００１６】
誘導装置１を搭載した飛しょう体Ｍが局部発振部２でＲＦ帯連続信号とローカル信号を生成し、送信部３でＲＦ帯連続信号を予め定められたパルス変調信号により入り切りして送信パルス信号を生成し、アンテナ部４から空間に電波を放射し、目標５からの反射波及びジャマＪから出力されたジャミング波の振幅、位置情報を含むＳＵＭ受信信号とＤＩＦ受信信号を生成する。
【００１７】
受信部６で前記出力された時系列のＳＵＭ受信信号とＤＩＦ受信信号を局部発振部から出力されたローカル信号で周波数変換、位相検波し、目標５からの反射波及びジャマＪから出力されたジャミング波の振幅、位置情報を含む時系列のＳＵＭビデオ信号とＤＩＦビデオ信号に変換して、Ａ／Ｄ変換部７で前記ＳＵＭビデオ信号とＤＩＦビデオ信号をディジタルビデオ信号に変換し、合成帯域部１３で前記信号を目標５及びジャマＪから出力されたジャミング波の振幅、位置情報を含むＮ個のＳＵＭビデオ信号とＮ個のＤＩＦビデオ信号の逆周波数解析を実施し、高距離分解された目標５及びジャマＪから出力されたジャミング波のレンジプロファイルとして合成帯域狭ＳＵＭパルス信号及び合成帯域ＤＩＦパルス信号を出力し、検出部８で前記信号を予め定められたスレッショルドで目標５からの反射波及びジャマＪを検出する。
【００１８】
形状判定部１４で検出部から検出された目標及びジャマから出力されたジャミング波のレンジプロファイル情報を予め保持しているジャミング形状を用いて形状判定し目標及びジャマから出力されたジャミング波を識別し、図３に示すように目標選択部１５で検出部から検出された目標５及びジャマＪから出力されたジャミング波のレンジプロファイル情報を、予め定められたジャミング形状パターンを用いて相関を取り、形状判定部から検出された判定結果から目標を選択する。
【００１９】
角度検出部１０で目標選択部１５からの信号と合成帯域部１３からの合成帯域狭ＳＵＭパルス信号からアンテナ部主軸と目標５との角度誤差を演算する。
誘導信号計算部１０で前記角度誤差から誘導信号１１を演算出力し、誘導信号１１を用いて、誘導装置外部に出力し、誘導装置１を搭載した飛しょう体Ｍを目標５へ誘導する。
【００２０】
このような構成をとることによって、従来のレンジプロファイル図を示す図１１で目標５及びジャマＪから出力されたジャミング波の区別が不可能であった問題が、図３に示すような目標５及びジャマＪから出力されたジャミング波を識別、選択可能になり、識別、選択能力が向上する。
また距離分解能を向上し、より目標５及びジャマＪから出力されたジャミング波の形状を識別できる。
【００２１】
実施の形態２．
図４と図２と図５はこの発明の実施の形態２を示す構成図と運用図と目標判定図である。図４において、実施の形態１の構成図である図１に対して新規部分として、速度判定部１６である。
【００２２】
１６は検出部から検出された目標５及びジャマＪから出力されたジャミング波のレンジプロファイル情報を、予め定められた速度判定レベルを用いて目標５及びジャマＪから出力されたジャミング波を識別する速度判定部である。
【００２３】
この動作を図４と図２と図５に基づいて説明する。
図２は運用図を示すもので、１は誘導装置、Ｍは誘導装置１を搭載した飛しょう体、５は目標、Ｊはジャマである。図４において、２〜１４の動作は、図２の実施の形態１と同等である。
【００２４】
図５に示すように速度判定部１４で検出部から検出された目標５及びジャマＪから出力されたジャミング波のレンジプロファイル情報を、予め定められた速度判定レベルを用いて目標５及びジャマＪから出力されたジャミング波を識別する。これらの処理によって、誘導装置１を搭載した飛しょう体Ｍを目標５に向かって高精度な誘導をする。
【００２５】
このような構成をとることによって、従来及び第１の発明に比べて形状判定以外に速度判定するので、目標５及びジャマＪから出力されたジャミング波との識別、選択能力が向上する。
【００２６】
実施の形態３．
図６と図２と図７はこの発明の実施の形態３を示す構成図と運用図と目標判定図である。図６において、実施の形態１の構成図である図１に対して新規部分として、電力判定部１７である。
【００２７】
１７は、検出部から検出された目標５及びジャマＪから出力されたジャミング波のレンジプロファイル情報を、予め定められた電力判定レベルを用いて目標５及びジャマＪから出力されたジャミング波を識別する電力判定部である。
【００２８】
この動作を図６と図２と図７に基づいて説明する。
図２は運用図を示すもので、１は誘導装置、Ｍは誘導装置１を搭載した飛しょう体、５は目標、Ｊはジャマである。図６において、２〜１４の動作は、図２の実施の形態１と同等である。
【００２９】
図７に示すように電力判定部１７で検出部から検出された目標５及びジャマＪから出力されたジャミング波のレンジプロファイル情報を、予め定められた電力判定レベルを用いて目標５及びジャマＪから出力されたジャミング波を識別する。これらの処理によって、誘導装置１を搭載した飛しょう体Ｍを目標５に向かって高精度な誘導をする。
【００３０】
このような構成をとることによって、従来及び第１の発明に比べて形状判定以外に電力判定するので、目標及びジャマから出力されたジャミング波との識別、選択能力を向上する。
【００３１】
実施の形態４．
図８と図２と図９はこの発明の実施の形態４を示す構成図と運用図と目標判定図である。図８において、実施の形態２の構成図である図４に対して新規部分として、電力判定部１７である。
【００３２】
１７は検出部から検出された目標５及びジャマＪから出力されたジャミング波のレンジプロファイル情報を、予め定められた電力判定レベルを用いて目標５及びジャマＪから出力されたジャミング波を識別する電力判定部である。
【００３３】
この動作を図８と図２と図９に基づいて説明する。
図２は運用図を示すもので、１は誘導装置、Ｍは誘導装置１を搭載した飛しょう体、５は目標、Ｊはジャマである。図８において、２〜１４，１６の動作は、図４の実施の形態２と同等である。
【００３４】
図９に示すように電力判定部１７で検出部から検出された目標５及びジャマＪから出力されたジャミング波のレンジプロファイル情報を、予め定められた電力判定レベルを用いて目標５及びジャマＪから出力されたジャミング波を識別する。これらの処理によって、誘導装置１を搭載した飛しょう体Ｍを目標５に向かって高精度な誘導をする。
【００３５】
このような構成をとることによって、従来及び第２の発明に比べて形状判定、速度判定以外に電力判定するので、目標５及びジャマＪから出力されたジャミング波との識別、選択能力を向上する。
【００３６】
【発明の効果】
この発明によれば、以上で述べたように、従来に比べて目標及びジャマから出力されたジャミング波の形状を識別できるので、ジャミング波を目標と間違って誘導することを無くすることができる。
【図面の簡単な説明】
【図１】この発明による誘導装置の実施形態１の構成を示す図である。
【図２】この発明による誘導装置の運用を示す図である。
【図３】この発明による誘導装置の実施形態１の目標判定を示す図である。
【図４】この発明による誘導装置の実施形態２の構成を示す図である。
【図５】この発明による誘導装置の実施形態２の目標判定を示す図である。
【図６】この発明による誘導装置の実施形態３の構成を示す図である。
【図７】この発明による誘導装置の実施形態３の目標判定を示す図である。
【図８】この発明による誘導装置の実施形態４の構成を示す図である。
【図９】この発明による誘導装置の実施形態４の目標判定を示す図である。
【符号の説明】
１誘導装置、２局部発振部、３送信部、４アンテナ部、５目標、６受信部、７Ａ／Ｄ変換部、８検出部、９最大電力判定部、１０角度検出部、１１誘導信号計算部、１２誘導信号、１３合成帯域部、１４形状判定部、１５目標選択部、１６速度判定部、１７電力判定部。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a guidance device for guiding a target such as a flying object to a target in a jamming environment without being affected by the jamming.
[0002]
[Prior art]
In the conventional guidance device, the accuracy of target detection and target classification is poor, and a designated target cannot be selected before launching a flying object. Clutters, islands, jammers, and multiple targets are sorted out and collated with external map data to identify designated targets. A method is known in which a plurality of targets are tracked when identification is impossible, and an error angle and a guidance signal are calculated by relative angle approach angle calculation processing so as to reach a predetermined approach angle when identification is possible (for example, And Patent Document 1.).
[0003]
[Patent Document 1]
JP-A-2000-65925 (FIG. 1)
[0004]
[Problems to be solved by the invention]
In the conventional guiding device as described above, when a reflected wave from a target is present in a received wave, and a jamming wave output from a jammer is present, a signal having a large received power is determined as a target. There is a problem that the flying object is guided to the jamming wave and cannot be guided to the target because the jamming wave cannot be distinguished.
[0005]
The present invention has been made in order to solve such a problem, and improves the discrimination and selection ability of a reflected wave from a target and a jamming wave output from a jammer, and a reflected wave from a target and a reflected wave from a jammer. An object of the present invention is to detect information of a target from a jamming wave and to guide a target to the target.
[0006]
[Means for Solving the Problems]
A guidance device according to a first aspect of the present invention provides a local oscillation unit that generates N continuous signals in the RF band and a local signal, and generates a transmission pulse signal by turning on and off the continuous signal in the RF band with a predetermined pulse modulation signal. A transmitting unit, an antenna unit that radiates radio waves into space, and generates a SUM reception signal and a DIF reception signal including amplitude and position information of a reflected wave from a target and a jamming wave output from a jammer; The SUM reception signal and the DIF reception signal of the series are frequency-converted and phase-detected by the local signal output from the local oscillator, and the time series including the amplitude and the position information of the reflected wave from the target and the jamming wave output from the jammer are output. A receiving unit that converts a SUM video signal and a DIF video signal into a digital video signal, and an A / D converter that converts the SUM video signal and the DIF video signal into a digital video signal The signal is subjected to inverse frequency analysis of the N SUM video signals and the N DIF video signals including the amplitude and the position information of the reflected wave from the target and the jamming wave output from the jammer. A combining band unit that outputs a combined band narrow SUM pulse signal and a combined band DIF pulse signal as a range profile of the jamming wave output from the target and the jammer, and the combined band narrow SUM pulse signal from the target at a predetermined threshold. A detecting unit for detecting the reflected wave of the jamming wave output from the jammer and a target detected by the detecting unit and a jamming shape holding the range profile information of the jamming wave output from the jammer in advance. A shape determining unit for determining and identifying a jamming wave output from a target and a jammer; A target selection unit for selecting a target from the determination result detected by the unit, and an angle detection unit for calculating an angle error between the main axis of the antenna unit and the target by using the synthesized band narrow SUM pulse signal and the synthesized band DIF pulse signal from the synthesized band unit. And a guidance signal calculation unit for calculating and outputting a guidance signal from the angle error.
[0007]
In addition, the guidance device according to the second aspect of the present invention includes a local oscillation unit that generates N RF-band continuous signals and a local signal, and switches the RF-band continuous signal on and off with a predetermined pulse modulation signal to generate a transmission pulse signal. A transmitting unit for generating, an antenna unit for radiating radio waves into space, generating a SUM reception signal and a DIF reception signal including the amplitude of the reflected wave from the target and the jamming wave output from the jammer, and position information, and the output unit; Time conversion of the time-series SUM reception signal and DIF reception signal with the local signal output from the local oscillator, phase detection, and the time series including the amplitude and position information of the reflected wave from the target and the jamming wave output from the jammer Receiving section for converting the SUM video signal and the DIF video signal into a digital video signal, and an A / D for converting the SUM video signal and the DIF video signal into a digital video signal. And an inverse frequency analysis of the N signals and the N DIF video signals including the amplitude and the position information of the reflected wave from the target and the jamming wave output from the jammer. A synthesized band section that outputs a synthesized band narrow SUM pulse signal and a synthesized band DIF pulse signal as a range profile of the decomposed target and the jamming wave output from the jammer, and the synthesized band narrow SUM pulse signal at a predetermined threshold. A detection unit that detects the reflected wave from the target and the jamming wave output from the jammer, and a jamming shape that holds in advance the target and the range profile information of the jamming wave output from the jammer detected from the detection unit are used. A shape judging unit for judging the shape by the shape and identifying the jamming wave output from the target and the jammer; A speed determination unit that identifies the jamming wave output from the target and the jammer using the target and the range profile information of the jamming wave output from the jammer detected from the unit using a predetermined speed determination level; and the shape determination. A target selection unit for selecting a target from the determination results detected by the unit and the speed determination unit; and a combining band narrow SUM pulse signal and a combining band DIF pulse signal from the combining band unit. It comprises an angle detecting section for calculating and a guiding signal calculating section for calculating and outputting a guiding signal from the angle error.
[0008]
Further, the guidance device according to the third aspect of the present invention is a local oscillation unit that generates N RF band continuous signals and a local signal, and switches the RF band continuous signal on and off by a predetermined pulse modulation signal to transmit a transmission pulse signal. A transmitting unit that generates a signal, an antenna unit that radiates radio waves into space, and generates a SUM reception signal and a DIF reception signal including the amplitude and the position information of the reflected wave from the target and the jamming wave output from the jammer; When the time-series SUM reception signal and DIF reception signal are frequency-converted and phase-detected by the local signal output from the local oscillator, and include the amplitude and position information of the reflected wave from the target and the jamming wave output from the jammer. A receiving unit for converting the SUM video signal and the DIF video signal into a series of SUM video signals and a DIF video signal; The conversion unit performs the inverse frequency analysis of the N SUM video signals and the N DIF video signals including the amplitude and the position information of the reflected wave from the target and the jamming wave output from the jammer, A synthesized band section that outputs a synthesized band narrow SUM pulse signal and a synthesized band DIF pulse signal as a range profile of the decomposed target and the jamming wave output from the jammer, and the synthesized band narrow SUM pulse signal at a predetermined threshold. A detection unit that detects the reflected wave from the target and the jamming wave output from the jammer, and a jamming shape that holds in advance the target and the range profile information of the jamming wave output from the jammer detected from the detection unit are used. A shape judging unit for judging the shape and identifying the jamming wave output from the target and the jammer; A power judging unit that identifies the jamming wave output from the target and the jammer using a predetermined power judgment level, using range profile information of the jamming wave output from the target and the jammer detected from the output unit; and A target selection unit for selecting a target from the determination results detected by the determination unit and the power determination unit; and a combined band narrow SUM pulse signal and a combined band DIF pulse signal from the combined band unit, the angular error between the antenna main axis and the target. , And a guidance signal calculation unit that computes and outputs a guidance signal from the angle error.
[0009]
The guidance device according to a fourth aspect of the present invention includes a local oscillation unit that generates N RF-band continuous signals and a local signal, and turns on and off the RF-band continuous signal with a predetermined pulse modulation signal to generate a transmission pulse signal. A transmitting unit that generates a signal, an antenna unit that radiates radio waves into space, and generates a SUM reception signal and a DIF reception signal including the amplitude and the position information of the reflected wave from the target and the jamming wave output from the jammer; When the time-series SUM reception signal and DIF reception signal are frequency-converted and phase-detected by the local signal output from the local oscillator, and include the amplitude and position information of the reflected wave from the target and the jamming wave output from the jammer. A receiving unit for converting the SUM video signal and the DIF video signal into a series of SUM video signals and a DIF video signal; The conversion unit performs the inverse frequency analysis of the N SUM video signals and the N DIF video signals including the amplitude and the position information of the reflected wave from the target and the jamming wave output from the jammer, A synthesized band section that outputs a synthesized band narrow SUM pulse signal and a synthesized band DIF pulse signal as a range profile of the decomposed target and the jamming wave output from the jammer, and the synthesized band narrow SUM pulse signal at a predetermined threshold. A detection unit that detects the reflected wave from the target and the jamming wave output from the jammer, and a jamming shape that holds in advance the target and the range profile information of the jamming wave output from the jammer detected from the detection unit are used. A shape judging unit for judging the shape and identifying the jamming wave output from the target and the jammer; A speed determination unit that identifies the target and the jamming wave output from the jammer by using a predetermined speed determination level, based on the range profile information of the jamming wave output from the target and the jammer detected from the output unit; A power judging unit that identifies the jamming wave output from the target and the jammer using a predetermined power judgment level based on the range profile information of the jamming wave output from the target and the jammer detected from the unit; and the shape judgment. A target selection unit that selects a target from the determination results detected from the unit, the speed determination unit, and the power determination unit; and a synthesis band narrow SUM pulse signal and a synthesis band DIF pulse signal from the synthesis band unit. An angle detection unit that calculates an angle error of the angle, and a guidance signal calculation unit that calculates and outputs a guidance signal from the angle error. It is.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
FIG. 1, FIG. 2, and FIG. 3 are a configuration diagram, an operation diagram, and a target determination diagram showing Embodiment 1 of the present invention.
In FIG. 1, reference numeral 1 denotes a guidance device mounted on the front of the flying object M, 2 denotes a local oscillator that generates an RF band continuous signal and a local signal, and 3 denotes an RF band continuous signal from a local oscillator 2. The transmission unit generates a transmission pulse signal by switching on and off based on a predetermined pulse modulation signal.
[0011]
4 radiates radio waves into the space, receives a reflected wave from a target existing in the space, and receives a jamming wave output from a jammer installed at the target and the like, and receives the reflected wave and the jamming wave. And an antenna unit for generating a SUM (official name) received signal and a DIF (official name) received signal including amplitude and position information for each received wave.
[0012]
Then, 6 performs frequency conversion and phase detection of the output time-series SUM reception signal and DIF reception signal with the local signal output from the local oscillation unit, and detects the reflected wave from the target and the jamming wave output from the jammer. 5 shows a receiving unit that converts a time-series SUM video signal and a DIF video signal including amplitude and position information.
[0013]
Reference numeral 7 denotes an A / D converter for converting the SUM video signal and the DIF video signal into a digital video signal, and 8 detects a reflected wave from a target and a jamming wave output from the jammer at a predetermined threshold. The detecting unit 9 selects a large power using the received power of the target output from the detecting unit and the jamming wave output from the jammer, and the maximum power determining unit 10 calculates the angular error between the main axis of the antenna unit and the target. An angle detection unit 11 is a guidance signal calculation unit that computes and outputs a guidance signal for guiding a guidance target from the angle error.
In this example, the guidance target is a flying object M.
[0014]
Reference numeral 14 denotes a shape judging unit for judging a shape using a jamming shape which holds in advance the range profile information of the jamming wave output from the target and the jammer detected by the detecting unit and identifying the jamming wave output from the target and the jammer. , 15 are target selection units for selecting a target from the determination results detected by the shape determination unit.
[0015]
This operation will be described with reference to FIGS.
FIG. 2 shows an operation diagram, wherein 1 is a guidance device, M is a flying object on which the guidance device 1 is mounted, 5 is a target, and J is a jammer.
[0016]
A flying object M on which the guidance device 1 is mounted generates an RF band continuous signal and a local signal in a local oscillation unit 2, and a transmitting unit 3 turns on and off the RF band continuous signal with a predetermined pulse modulation signal to transmit a pulse signal. Is generated, a radio wave is radiated into space from the antenna unit 4, and a SUM reception signal and a DIF reception signal including amplitude and position information of the reflected wave from the target 5 and the jamming wave output from the jammer J are generated.
[0017]
The reception unit 6 performs frequency conversion and phase detection of the time-series SUM reception signal and DIF reception signal output from the local oscillation unit, and outputs a reflected wave from the target 5 and a jamming output from the jammer J. The A / D converter 7 converts the SUM video signal and the DIF video signal into a digital video signal, and converts the SUM video signal and the DIF video signal into a digital video signal. Performs inverse frequency analysis of the SUM video signal and the N DIF video signals including the amplitude and position information of the jamming wave output from the jammer J with the target 5 and the target 5, and performs the high-range resolution target 5 And a composite band narrow SUM pulse signal and a composite band DIF pulse signal are output as the range profile of the jamming wave output from the jammer J. In predetermined threshold the serial signal to detect the reflected waves and baffle J from the target 5.
[0018]
The shape determination unit 14 determines the shape using the jamming shape that holds the range profile information of the jamming wave output from the target and the jammer detected from the detection unit in advance, and identifies the jamming wave output from the target and the jammer. As shown in FIG. 3, the target selection unit 15 detects the correlation between the target 5 detected by the detection unit and the range profile information of the jamming wave output from the jammer J using a predetermined jamming shape pattern. A target is selected from the determination result detected by the determination unit.
[0019]
The angle detection unit 10 calculates an angle error between the antenna main axis and the target 5 from the signal from the target selection unit 15 and the synthesized band narrow SUM pulse signal from the synthesis band unit 13.
The guidance signal calculation unit 10 calculates and outputs the guidance signal 11 from the angle error, outputs the guidance signal 11 to the outside of the guidance device using the guidance signal 11, and guides the flying object M on which the guidance device 1 is mounted to the target 5.
[0020]
By adopting such a configuration, the problem that it was impossible to distinguish between the target 5 and the jamming wave output from the jammer J in FIG. The jamming wave output from the jammer J can be identified and selected, and the identification and selection ability is improved.
Further, the distance resolution can be improved, and the shape of the jamming wave output from the target 5 and the jammer J can be further identified.
[0021]
Embodiment 2 FIG.
4, 2, and 5 are a configuration diagram, an operation diagram, and a target determination diagram showing a second embodiment of the present invention. In FIG. 4, a speed determining unit 16 is a new part compared to FIG. 1, which is a configuration diagram of the first embodiment.
[0022]
Reference numeral 16 denotes a speed at which the range profile information of the jamming wave output from the target 5 and the jammer J detected by the detection unit is used to identify the jamming wave output from the target 5 and the jammer J using a predetermined speed determination level. It is a determination unit.
[0023]
This operation will be described with reference to FIG. 4, FIG. 2 and FIG.
FIG. 2 shows an operation diagram, wherein 1 is a guidance device, M is a flying object on which the guidance device 1 is mounted, 5 is a target, and J is a jammer. In FIG. 4, operations 2 to 14 are equivalent to those in the first embodiment in FIG.
[0024]
As shown in FIG. 5, the range determination information of the jamming wave output from the target 5 and the jammer J detected by the detection unit by the speed determination unit 14 is converted from the target 5 and the jammer J using a predetermined speed determination level. Identify the output jamming wave. Through these processes, the flying object M equipped with the guidance device 1 is guided with high accuracy toward the target 5.
[0025]
By adopting such a configuration, since the speed is determined in addition to the shape determination as compared with the related art and the first invention, the ability to identify and select the target 5 and the jamming wave output from the jammer J is improved.
[0026]
Embodiment 3 FIG.
FIG. 6, FIG. 2, and FIG. 7 are a configuration diagram, an operation diagram, and a target determination diagram showing a third embodiment of the present invention. In FIG. 6, a power determining unit 17 is a new part compared to FIG. 1, which is a configuration diagram of the first embodiment.
[0027]
Reference numeral 17 identifies the target 5 detected by the detection unit and the range profile information of the jamming wave output from the jammer J by using a predetermined power determination level to identify the jamming wave output from the target 5 and the jammer J. It is a power determination unit.
[0028]
This operation will be described with reference to FIGS. 6, 2 and 7.
FIG. 2 shows an operation diagram, wherein 1 is a guidance device, M is a flying object on which the guidance device 1 is mounted, 5 is a target, and J is a jammer. 6, the operations 2 to 14 are the same as those in the first embodiment shown in FIG.
[0029]
As shown in FIG. 7, the target 5 detected by the power determination unit 17 and the range profile information of the jamming wave output from the jammer J are output from the target 5 and the jammer J using a predetermined power determination level. Identify the output jamming wave. Through these processes, the flying object M equipped with the guidance device 1 is guided with high accuracy toward the target 5.
[0030]
By adopting such a configuration, the power is determined in addition to the shape determination as compared with the conventional and the first inventions, so that the ability to identify and select the target and the jamming wave output from the jammer is improved.
[0031]
Embodiment 4 FIG.
FIGS. 8, 2, and 9 are a configuration diagram, an operation diagram, and a target determination diagram showing Embodiment 4 of the present invention. In FIG. 8, a power determining unit 17 is a new part compared to FIG. 4 which is a configuration diagram of the second embodiment.
[0032]
Reference numeral 17 denotes a power for identifying the jamming wave output from the target 5 and the jammer J using the predetermined power determination level by using the range profile information of the jamming wave output from the target 5 and the jammer J detected by the detection unit. It is a determination unit.
[0033]
This operation will be described with reference to FIG. 8, FIG. 2, and FIG.
FIG. 2 shows an operation diagram, wherein 1 is a guidance device, M is a flying object on which the guidance device 1 is mounted, 5 is a target, and J is a jammer. 8, the operations of 2 to 14, 16 are equivalent to those of the second embodiment of FIG.
[0034]
As shown in FIG. 9, the target 5 detected by the power determination unit 17 and the range profile information of the jamming wave output from the jammer J are output from the target 5 and the jammer J using a predetermined power determination level. Identify the output jamming wave. Through these processes, the flying object M equipped with the guidance device 1 is guided with high accuracy toward the target 5.
[0035]
By adopting such a configuration, the power is determined in addition to the shape determination and the speed determination as compared with the related art and the second invention, so that the ability to discriminate and select the target 5 and the jamming wave output from the jammer J is improved. .
[0036]
【The invention's effect】
According to the present invention, as described above, since the shape of the jamming wave output from the target and the jammer can be identified as compared with the related art, it is possible to prevent the jamming wave from being erroneously guided as the target.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a first embodiment of a guidance device according to the present invention.
FIG. 2 is a diagram showing the operation of the guidance device according to the present invention.
FIG. 3 is a diagram illustrating a target determination in the first embodiment of the guidance device according to the present invention;
FIG. 4 is a diagram showing a configuration of a second embodiment of the guidance device according to the present invention;
FIG. 5 is a diagram showing a target determination in a second embodiment of the guidance device according to the present invention;
FIG. 6 is a diagram showing a configuration of a third embodiment of the guidance device according to the present invention.
FIG. 7 is a diagram illustrating a target determination in a third embodiment of the guidance device according to the present invention;
FIG. 8 is a diagram showing a configuration of a fourth embodiment of the guidance device according to the present invention.
FIG. 9 is a diagram showing a target determination of a guidance device according to a fourth embodiment of the present invention.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 guidance device, 2 local oscillation unit, 3 transmission unit, 4 antenna unit, 5 target, 6 reception unit, 7 A / D conversion unit, 8 detection unit, 9 maximum power determination unit, 10 angle detection unit, 11 guidance signal calculation Unit, 12 guide signal, 13 combined band unit, 14 shape determination unit, 15 target selection unit, 16 speed determination unit, 17 power determination unit.

Claims

A local oscillation unit for generating N RF band continuous signals and a local signal;
A transmission unit that generates a transmission pulse signal by turning on and off the RF band continuous signal by a predetermined pulse modulation signal,
An antenna unit that radiates radio waves into space and generates a SUM reception signal and a DIF reception signal including the amplitude of the reflected wave from the target and the jamming wave output from the jammer, and position information;
The output time-series SUM reception signal and DIF reception signal are frequency-converted and phase-detected by the local signal output from the local oscillator, and the amplitude and position information of the reflected wave from the target and the jamming wave output from the jammer are output. A receiving unit for converting into a time-series SUM video signal and a DIF video signal including:
An A / D converter for converting the SUM video signal and the DIF video signal into a digital video signal;
The digital video signal is subjected to inverse frequency analysis of N SUM video signals and N DIF video signals including the amplitude and position information of the reflected wave from the target and the jamming wave output from the jammer, and is subjected to high-range resolution. A composite band unit that outputs a composite band narrow SUM pulse signal and a composite band DIF pulse signal as a range profile of the jamming wave output from the target and the jammer,
A detecting unit that detects the reflected wave from the target and the jamming wave output from the jammer at the predetermined threshold of the synthesized band narrow SUM pulse signal;
The range profile information of the jamming wave output from the target and the jammer detected by the detection unit is compared with a previously stored jamming shape, and the jamming wave output from the target and the jammer is identified based on the comparison result. A shape determination unit,
A target selection unit that selects a target from the determination result detected from the shape determination unit,
An angle detection unit that calculates an angle error between the antenna main axis and the target from the signal from the target selection unit and the synthesized band narrow SUM pulse signal from the synthesis band unit;
A guidance device, comprising: a guidance signal calculation unit that calculates and outputs a guidance signal for guiding a guidance target from the angle error.

A local oscillation unit for generating N RF band continuous signals and a local signal;
A transmission unit that generates a transmission pulse signal by turning on and off the RF band continuous signal by a predetermined pulse modulation signal,
An antenna unit that radiates radio waves into space and generates a SUM reception signal and a DIF reception signal including the amplitude of the reflected wave from the target and the jamming wave output from the jammer, and position information;
The output time-series SUM reception signal and DIF reception signal are frequency-converted and phase-detected by the local signal output from the local oscillator, and the amplitude and position information of the reflected wave from the target and the jamming wave output from the jammer are output. A receiving unit for converting into a time-series SUM video signal and a DIF video signal including:
An A / D converter for converting the SUM video signal and the DIF video signal into a digital video signal;
The signal is subjected to inverse frequency analysis of N SUM video signals and N DIF video signals including the amplitude and position information of the reflected wave from the target and the jamming wave output from the jammer, and the high-resolution target And a combining band unit that outputs a combining band narrow SUM pulse signal and a combining band DIF pulse signal as a range profile of the jamming wave output from the jammer.
A detecting unit that detects the reflected wave from the target and the jamming wave output from the jammer at the predetermined threshold of the synthesized band narrow SUM pulse signal;
A shape determination unit that determines a shape using a jamming shape that holds in advance the range profile information of the jamming wave output from the target and the jammer detected by the detection unit and identifies the jamming wave output from the target and the jammer; ,
The range profile information of the jamming wave output from the target and the jammer detected by the detection unit is compared with a predetermined speed determination level, and the jamming wave output from the target and the jammer is identified based on the comparison result. A speed determination unit to perform
A target selection unit that selects a target from the determination results detected from the shape determination unit and the speed determination unit,
An angle detection unit that calculates an angle error between a target axis of the antenna unit and a target using the synthesized band narrow SUM pulse signal and the synthesized band DIF pulse signal from the synthesized band unit;
A guidance device, comprising: a guidance signal calculation unit that calculates and outputs a guidance signal from the angle error.

A local oscillation unit for generating N RF band continuous signals and a local signal;
A transmission unit that generates a transmission pulse signal by turning on and off the RF band continuous signal by a predetermined pulse modulation signal,
An antenna unit that radiates radio waves into space and generates a SUM reception signal and a DIF reception signal including the amplitude of the reflected wave from the target and the jamming wave output from the jammer, and position information;
The output time-series SUM reception signal and DIF reception signal are frequency-converted and phase-detected by the local signal output from the local oscillator, and the amplitude and position information of the reflected wave from the target and the jamming wave output from the jammer A receiving unit for converting into a time-series SUM video signal and a DIF video signal including:
An A / D converter for converting the SUM video signal and the DIF video signal into a digital video signal;
The signal is subjected to inverse frequency analysis of N SUM video signals and N DIF video signals including the amplitude and position information of the reflected wave from the target and the jamming wave output from the jammer, and the high-resolution target And a combining band unit that outputs a combining band narrow SUM pulse signal and a combining band DIF pulse signal as a range profile of the jamming wave output from the jammer.
A detecting unit that detects the reflected wave from the target and the jamming wave output from the jammer at the predetermined threshold of the synthesized band narrow SUM pulse signal;
A shape determination unit that determines a shape using a jamming shape that holds in advance the range profile information of the jamming wave output from the target and the jammer detected by the detection unit and identifies the jamming wave output from the target and the jammer; ,
A power determination unit that identifies the jamming wave output from the target and the jammer by using a predetermined power determination level, with the range profile information of the jamming wave output from the target and the jammer detected from the detection unit,
A target selection unit that selects a target from the determination results detected from the shape determination unit and the power determination unit,
An angle detection unit that calculates an angle error between a target axis of the antenna unit and a target using the synthesized band narrow SUM pulse signal and the synthesized band DIF pulse signal from the synthesized band unit;
A guidance device, comprising: a guidance signal calculation unit that calculates and outputs a guidance signal from the angle error.

A local oscillation unit for generating N RF band continuous signals and a local signal;
A transmission unit that generates a transmission pulse signal by turning on and off the RF band continuous signal by a predetermined pulse modulation signal,
An antenna unit that radiates radio waves into space and generates a SUM reception signal and a DIF reception signal including the amplitude of the reflected wave from the target and the jamming wave output from the jammer, and position information;
The output time-series SUM reception signal and DIF reception signal are frequency-converted and phase-detected by the local signal output from the local oscillator, and the amplitude and position information of the reflected wave from the target and the jamming wave output from the jammer A receiving unit for converting into a time-series SUM video signal and a DIF video signal including:
An A / D converter for converting the SUM video signal and the DIF video signal into a digital video signal;
The signal is subjected to inverse frequency analysis of N SUM video signals and N DIF video signals including the amplitude and position information of the reflected wave from the target and the jamming wave output from the jammer, and the high-resolution target And a combining band unit that outputs a combining band narrow SUM pulse signal and a combining band DIF pulse signal as a range profile of the jamming wave output from the jammer.
A detecting unit that detects the reflected wave from the target and the jamming wave output from the jammer at the predetermined threshold of the synthesized band narrow SUM pulse signal;
A shape determination unit that determines a shape using a jamming shape that holds in advance the range profile information of the jamming wave output from the target and the jammer detected by the detection unit and identifies the jamming wave output from the target and the jammer; ,
A speed determination unit for identifying the jamming wave output from the target and the jammer using the target and the range profile information of the jamming wave output from the jammer detected from the detection unit using a predetermined speed determination level.
A power determination unit that identifies the jamming wave output from the target and the jammer by using a predetermined power determination level, with the range profile information of the jamming wave output from the target and the jammer detected from the detection unit,
A target selection unit that selects a target from the determination results detected from the shape determination unit, the speed determination unit, and the power determination unit,
An angle detection unit that calculates an angle error between a target axis of the antenna unit and a target using the synthesized band narrow SUM pulse signal and the synthesized band DIF pulse signal from the synthesized band unit;
A guidance device, comprising: a guidance signal calculation unit that calculates and outputs a guidance signal from the angle error.