JP2000509814A - デジタル方向探知受信装置 - Google Patents
デジタル方向探知受信装置Info
- Publication number
- JP2000509814A JP2000509814A JP10530008A JP53000898A JP2000509814A JP 2000509814 A JP2000509814 A JP 2000509814A JP 10530008 A JP10530008 A JP 10530008A JP 53000898 A JP53000898 A JP 53000898A JP 2000509814 A JP2000509814 A JP 2000509814A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- digital
- frequency
- channel
- output
- 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.)
- Granted
Links
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/04—Details
- G01S3/043—Receivers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
- G01S3/48—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/74—Multi-channel systems specially adapted for direction-finding, i.e. having a single antenna system capable of giving simultaneous indications of the directions of different signals
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.前記受信装置の周波数帯域にわたって広がっているN個の周波数チャンネル を有し、1つの基準位置アンテナを含む互いに間隔を隔てて配置されている複数 のアンテナから同時に信号を受信することのできるデジタル方向探知受信装置に おいて、 アンテナのそれぞれ1つに接続されたアナログ入力を有する複数のアナログデ ジタル変換器と、 前記N個の周波数チャンネルの選択された1つにおいて少なくとも局部周波数 成分を含む基準デジタル信号を出力することのできる基準信号源と、 それぞれの前記基準信号源に接続された基準入力と各アナログデジタル変換器 のデジタル出力に接続された信号入力とを有し、その出力において前記基準信号 と前記アンテナのそれぞれ1つからの信号との積を生成する乗算器をそれぞれ具 備する複数のデジタル下方変換器モジュールと、 デジタル位相検出器とを具備し、このデジタル位相検出器は前記デジタル下方 変換器の残りのものの出力に接続された入力を有する複数の位相検出器を有し、 前記基準アンテナにおいて受信された対応する信号に関して前記各位相検出器信 号入力における信号の位相角度を検出することを特徴とするデジタル方向探知受 信装置。 2.前記基準信号源は、前記N個の周波数チャンネルの選択された1つ内の局部 発振周波数を有する前記デジタル基準信号としてデジタル局部発振信号を出力す ることのできるデジタル局部発振器を具備している請求項1記載の受信装置。 3.前記局部発振器の周波数は前記N個の周波数チャンネルの選択された1つの 中心周波数である請求項2記載の受信装置。 4.前記位相検出器は、基準アンテナに対応するデジタル下方変換器出力に接続 された位相検出器基準入力をさらに備え、基準入力とその各信号入力との間の位 相差を感知する請求項2記載の受信装置。 5.前記基準信号源は、 前記N個の周波数チャンネルのN個の並列なチャンネル化された信号の連続す るサンプルのデジタル信号を受信し、記憶することのできるメモリ装置と、 前記周波数チャンネルの選択された1つに対応する1つのデジタル信号を前記 メモリ装置から選択して前記各デジタル下方変換器モジュールの前記局部発振器 入力に前記基準信号として供給することのできるスイッチ装置とを具備している 請求項1記載の受信装置。 6.前記各デジタル下方変換器は前記基準アンテナを除く前記アンテナの1つに 対応する請求項5記載の受信装置。 7.前記位相検出器は、前記各デジタル下方変換器の出力における位相角度を抽 出することのできる座標変換器を構成している請求項5記載の受信装置。 8.前記各メモリ装置は先入れ先出しメモリを具備している請求項5記載の受信 装置。 9.各前記デジタル下方変換器モジュールは、対応するアナログデジタル変換器 からの信号を記憶し、前記基準信号源からの前記基準信号と同期して記憶された 信号を出力するメモリ装置を具備している請求項1記載の受信装置。 10.前記各メモリ装置は先入れ先出しメモリを具備している請求項9記載の受 信装置。 11.前記N個の周波数チャンネルの1以上の識別に応答し、1以上の周波数チ ャンネルの識別子を記憶し、連続的に対応する基準信号を前記基準信号源から出 力させ、前記各デジタル下方変換器の前記メモリに対応する基準信号の前記連続 と同期して記憶された信号を反復させ、それによって前記位相検出器が各チャン ネルに同時に到来する各信号に対して位相角度を測定する制御装置をさらに具備 している請求項9記載の受信装置。 12.前記基準アンテナのアナログデジタル変換器のデジタル出力に接続された デジタル入力と、前記N個の周波数チャンネルに対応するN個のチャンネル化さ れたデジタル出力を有し、前記N個のチャンネル化された信号を有するデジタル チャンネル化装置をさらに具備している請求項5記載の受信装置。 13.前記各デジタル下方変換器はさらにデジタル下方変換器の乗算器の出力に おいてローパスフィルタを具備している請求項1記載の受信装置。 14.前記位相検出器は、位相検出器の基準入力および信号入力の対応するもの に接続された位相検出器乗算器と、前記位相検出器乗算器の出力に配置されたロ ーパスフィルタと、前記ローパスフィルタの出力から位相角度を抽出する座標変 換装置とを具備している請求項4記載の受信装置。 15.前記チャンネルのどれが有効な信号を含んでいるかを決定することにより 1以上のチャンネルを選択する検出および調停論理装置をさらに具備している請 求項1記載の受信装置。 16.前記検出および調停論理装置は、前縁検出器と、チャンネル間の曖昧性を 解消するチャンネル調停装置とを具備している請求項15記載の受信装置。 17.基準位置アンテナを含む互いに間隔を隔てて配置され、1つの基準位置ア ンテナを含んでいる複数のアンテナから同時に信号を受信することのできるデジ タル方向探知受信装置を含み、受信機帯域幅内にあるデジタル的に抽出された入 来信号の到着角度を含む選択されたパラメータを識別し、前記受信機帯域幅は複 数の隣接する周波数チャンネルに分離され、各チャンネルはチャンネル帯域幅を 有し、前記入来信号は前記複数のうち1つの周波数チャンネルにそれぞれ存在す る複数のチャンネル化された信号に分離され、それぞれの前記チャンネル化され た信号を受信するために接続されている複数のチャンネルプロセッサを具備して いるパラメータエンコーダシステムにおいて、 前記各チャンネルプロセッサは、 それぞれチャンネル化された信号の各サンプルの周波数値および振幅値を生成 するフーリエ変換手段と、 チャンネル調停装置とを具備し、 このチャンネル調停装置は、 前記振幅値を予め定められたしきい値と比較し、前記振幅値を前記チャンネ ル中の隣接するチャンネルの対応する振幅値と比較し、前記周波数値を、前記チ ャンネルのうちの隣接するチャンネルの対応する周波数値と比較する比較手段と 、 プロセッサ手段とを備え、このプロセッサ手段は、 (a)前記予め定められたしきい値に関して前記それぞれのチャンネルとそ れに隣接する近傍チャンネルとの対応する振幅値の決定と、 (b)隣接する近傍チャンネルの対応する周波数値にわたる前記周波数値の 支配度の決定と、 (c)前記周波数値と、予め定められた周波数しきい値を越える隣接する近 傍チャンネルの周波数値との差の決定の少なくとも1つに基づいて、検出された 信号が前記それぞれのチャンネルに位置するか否かを感知し、 前記各チャンネルプロセッサはさらに、 アンテナのそれぞれ1つに接続されたアナログ入力を有する複数のアナログデ ジタル変換器と、 前記チャンネル調停装置のプロセッサ手段により識別された前記N個の周波数 チャンネルの1つにおける少なくとも局部周波数成分を含む基準デジタル信号を 出力することのできる基準信号源と、 それぞれの前記基準信号源に接続された基準入力とアナログデジタル変換器の 各デジタル出力に接続された信号入力とを有し、その出力において前記基準信号 と前記アンテナのそれぞれ1つの信号との積を生成する乗算器をそれぞれ具備す る複数のデジタル下方変換器モジュールと、 前記デジタル下方変換器の残りのものの出力に接続された信号入力を有し、前 記基準アンテナにおいて受信された対応する信号に関して前記各位相検出器信号 入力における信号の位相角度を検出するデジタル位相検出器とを具備しているこ とを特徴とするパラメータエンコーダシステム。 18.前記基準信号源は、前記N個の周波数チャンネルの選択された1つにおけ る局部発振周波数を有する前記デジタル基準信号としてデジタル局部発振信号を 出力することのできるデジタル局部発振器を具備している請求項17記載の受信 装置。 19.前記基準信号源は、 前記N個の周波数チャンネルのN個の並列なチャンネル化された信号の連続す るサンプルのデジタル信号を受信し、記憶することのできるメモリ装置と、 1つの前記周波数チャンネルの選択された1つに対応する1つのデジタル信号 を前記メモリ装置から選択して前記各デジタル下方変換器モジュールの前記局部 発振器入力に前記基準信号として供給することのできるスイッチ装置とを具備し ている請求項17記載の受信装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US778,053 | 1997-01-02 | ||
US08/778,053 US5815117A (en) | 1997-01-02 | 1997-01-02 | Digital direction finding receiver |
US08/778,053 | 1997-01-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000509814A true JP2000509814A (ja) | 2000-08-02 |
JP3210349B2 JP3210349B2 (ja) | 2001-09-17 |
Family
ID=25112176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53000898A Expired - Lifetime JP3210349B2 (ja) | 1997-01-02 | 1997-11-25 | デジタル方向探知受信装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US5815117A (ja) |
EP (1) | EP1021732B1 (ja) |
JP (1) | JP3210349B2 (ja) |
KR (1) | KR100338006B1 (ja) |
AU (1) | AU5458698A (ja) |
TW (1) | TW390065B (ja) |
WO (1) | WO1998029756A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2015503783A (ja) * | 2011-12-22 | 2015-02-02 | エスエムエスツェー, エス.アー.エール.エル. | 近接感知を使用するジェスチャ動作アーキテクチャ |
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- 1997-01-02 US US08/778,053 patent/US5815117A/en not_active Expired - Lifetime
- 1997-11-25 KR KR1019997005880A patent/KR100338006B1/ko not_active IP Right Cessation
- 1997-11-25 WO PCT/US1997/021654 patent/WO1998029756A1/en active IP Right Grant
- 1997-11-25 EP EP97948539A patent/EP1021732B1/en not_active Expired - Lifetime
- 1997-11-25 AU AU54586/98A patent/AU5458698A/en not_active Abandoned
- 1997-11-25 JP JP53000898A patent/JP3210349B2/ja not_active Expired - Lifetime
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JP2015503783A (ja) * | 2011-12-22 | 2015-02-02 | エスエムエスツェー, エス.アー.エール.エル. | 近接感知を使用するジェスチャ動作アーキテクチャ |
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WO1998029756A1 (en) | 1998-07-09 |
EP1021732B1 (en) | 2002-12-18 |
EP1021732A1 (en) | 2000-07-26 |
KR20000062371A (ko) | 2000-10-25 |
AU5458698A (en) | 1998-07-31 |
JP3210349B2 (ja) | 2001-09-17 |
TW390065B (en) | 2000-05-11 |
KR100338006B1 (ko) | 2002-05-24 |
US5815117A (en) | 1998-09-29 |
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