JPS63235877A - Position measurement for radiolocation mobile station - Google Patents
Position measurement for radiolocation mobile stationInfo
- Publication number
- JPS63235877A JPS63235877A JP62070587A JP7058787A JPS63235877A JP S63235877 A JPS63235877 A JP S63235877A JP 62070587 A JP62070587 A JP 62070587A JP 7058787 A JP7058787 A JP 7058787A JP S63235877 A JPS63235877 A JP S63235877A
- Authority
- JP
- Japan
- Prior art keywords
- radiolocation
- mobile station
- base station
- wireless base
- radio
- 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
- 238000005259 measurement Methods 0.000 title claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 18
- 238000000691 measurement method Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000012795 verification Methods 0.000 claims 1
- 239000002585 base Substances 0.000 description 73
- 238000004364 calculation method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012790 confirmation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
Landscapes
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は複数の無線基地局のサービスエリア内の無線標
定移動局の位置を測定する方法において、いずれか一つ
の無線基地局において単独で位置測定を行なうことがで
きる無線標定移動局の位数測定方法に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention provides a method for measuring the position of a radiolocation mobile station within the service area of a plurality of radio base stations. The present invention relates to a method for measuring the order of a radiolocation mobile station that can perform measurements.
（従来の技術）
従来の無線標定移動局の位と測定方法として、例えば：
５２！Ａに示したように複数方位の合点を算出すること
によって無線標定移動局の位置を知る方法がある。(Prior art) As a conventional radio location mobile station location and measurement method, for example:
52! As shown in A, there is a method of knowing the position of a radiolocation mobile station by calculating the sum of a plurality of directions.
この方法においては、まず無線基地局Ａから無線標定移
動局ｍに向けて′心波Ａ、を発信すると、受信した無線
標定移動局ｍは無線基地局Ａに向けて電波Ａ１を同時に
返送し、無線基地局Ａはこれらの電波（Ａｏ、Ａ１）の
往復に要した時間の和（ｔＡｏ ＋ｔＡ＋ ）から、無
線基地局Ａと無線標定移動局ｍとの間の距離を算出する
。尚、無線標定移動局ｍの電波応答動作には若干の遅延
時間ｔｄが存するから、距離算出にあたってはこれを加
味すべきであるが、説明を省略するために無視して説明
する。無線基地局Ｂと無線標定移動局ｍとの間の距離と
、無線基地局Ｃと無線標定移動局ｍとの間の距離も同様
の方法によって算出される。In this method, first, a radio base station A transmits a heart wave A to a radio location mobile station m, and the radio location mobile station m that received it simultaneously sends a radio wave A1 back to the radio base station A. The radio base station A calculates the distance between the radio base station A and the radio location mobile station m from the sum (tAo + tA+) of the time required for the round trip of these radio waves (Ao, A1). Note that since there is a slight delay time td in the radio response operation of the radio location mobile station m, this should be taken into account when calculating the distance, but will be ignored for the sake of brevity. The distance between radio base station B and radiolocation mobile station m and the distance between radio base station C and radiolocation mobile station m are also calculated by the same method.
更に具体的には、各無線基地局Ａ、Ｂ、Ｃから無線標定
移動局ｍまでの距離は、各無線基地局Ａ、Ｂ、Ｃから発
信される電波にパルス信号を重畳し、無線標定移動局ｍ
から各基地Ａ、Ｂ、Ｃに夫々返送されてくる各電波ｍＰ
に含まれるパルス波の時間差を比較して計測し、解析す
ることによって算出されるものであり、算出方法は次式
（１）によって示される。More specifically, the distance from each radio base station A, B, C to the radio location mobile station m is determined by superimposing a pulse signal on the radio waves emitted from each radio base station A, B, C, Bureau m
Each radio wave mP sent back to each base A, B, and C from
It is calculated by comparing, measuring, and analyzing the time difference between the pulse waves included in the pulse waves, and the calculation method is shown by the following equation (1).
０ｘ１０４
（ｔＡｏ ＋ｔＡＩ ）／２ （Ｋｍ）・ ・ ・
（１）このように無線標定移動局ｍの地図上の位置は、
各無ｍ基地局Ａ、Ｂ、Ｃ１をそれぞれ中心点とし、且つ
各無線基地局から無線標定移動局ｍまでの距離を半径と
して地図上に描かれる３つの円ＡＰ、ＢＰ、ＣＰの交点
として得ることができる。0x104 (tAo + tAI)/2 (Km)...
(1) In this way, the location of radiolocation mobile station m on the map is
Obtained as the intersection point of three circles AP, BP, and CP drawn on a map with each wireless base station A, B, and C1 as the center point, and the distance from each wireless base station to the radio location mobile station m as the radius. be able to.
しかしながら、従来の測定方法によれば、測定の対象と
なる無線標定移動局が車両或は携帯無線等のように使用
する出力が小さく、使用空中線の実行高を得ることがで
きず、また利得の高い大型空中線を使用することができ
ない場合、無線標定移動局ｍの周囲の地形や障害物等に
よって受ける影響が大きくなって無、線標定移動局ｍか
らの返送電波がいずれかの無線基地局に到達しないとい
う事態が生じ易くなり、その結果無線標定移動局ｍの地
図上の位置を正確に算出することができなくなるという
欠点があった。However, according to the conventional measurement method, the output power used by the radiolocation mobile station to be measured is small, such as a vehicle or a portable radio, so it is not possible to obtain the effective height of the antenna used, and the gain is If it is not possible to use a large, tall antenna, the influence of the terrain and obstacles around the radio location mobile station m will be greater, and the return radio waves from the radio location mobile station m will be transmitted to one of the radio base stations. There is a drawback that a situation in which the radio location mobile station m is not reached tends to occur, and as a result, it becomes impossible to accurately calculate the position of the radio location mobile station m on the map.
（問題点を解決するための手段）
本発明は上記に鑑みてなされたものであり、無線標定移
動局からの返送電波を複数の基地うちの何れか１箇所で
受信できれば、無線標定移動局の地図上の位置を確定で
きるようにするため、複数の無線基地局のサービスエリ
ア内に位置するＳ線標定移動局の位ｔを測定する方法に
おいて、複数の無線基地局より無線標定移動局に対し順
次測距信号を発信し、無線標定移動局はこれら測距信号
を受信すると同時に各無線基地局からの測距信号に対応
した測距電波を返送し、ｌまたは複数の無線７！地局が
自局電波の往復時間及び他の無線基地局からの測距信号
が発信されてから自局に到達するまでの時間に基いて各
無線基地局から無線標定移動局までの距離を算出するこ
とによって無線標定移動局の位置を確定することを特徴
としている。(Means for solving the problem) The present invention has been made in view of the above, and if the return radio waves from the radiolocation mobile station can be received at any one of the plurality of bases, the radiolocation mobile station can receive the return radio waves from the radiolocation mobile station. In order to determine the location on a map, in a method for measuring the position t of an S-line location mobile station located within the service area of multiple radio base stations, The radio location mobile station sequentially transmits ranging signals, and upon receiving these ranging signals, the radio location mobile station returns ranging radio waves corresponding to the ranging signals from each radio base station, and transmits one or more radio 7! The ground station calculates the distance from each radio base station to the radio location mobile station based on the round trip time of its own radio waves and the time from when the ranging signal from another radio base station is transmitted until it reaches the own station. It is characterized in that the position of the radiolocation mobile station is determined by
（実施例）
以下１本発明の無線標定移動局の位置測定方法の一実施
例について詳細に説明する。(Embodiment) An embodiment of the method for determining the position of a radiolocation mobile station according to the present invention will be described in detail below.
第１図は本発明の測定方法における無線基地局と無線標
定移動局との間の電波の送受信の態様を示す模式図であ
る。FIG. 1 is a schematic diagram showing the mode of transmission and reception of radio waves between a radio base station and a radio location mobile station in the measurement method of the present invention.
無線標定移動局Ｍの位２１１測定は、複数の無線基地局
１．２．３から無線標定移動局Ｍへ向けて発信された３
つの電波ｉｏ、２ｏ、３ｏに対する無線標定移動局Ｍか
らの返送電波１１．２１．３１を全て何れか一つの無線
基地局１例えば無線基地局ｌ（以下、特定無線基地局と
いう）において受信してから、特定無線、Ｉ！地局ｌに
おいて測距信号の送信逐次制御方式と受信逐次制御方式
とに基いてに延照合させて各無線基地局１．２．３かも
の各距離を算出することによって行なわれる。The digit 211 measurement of the radiolocation mobile station M is based on 3 signals transmitted from a plurality of radio base stations 1.2.3 toward the radiolocation mobile station M.
The return radio waves 11, 21, and 31 from the radio location mobile station M for the three radio waves io, 2o, and 3o are all received by any one radio base station 1, for example, radio base station l (hereinafter referred to as a specific radio base station). From, specified radio, I! This is done by calculating the respective distances of each radio base station 1, 2, and 3 by repeatedly comparing the distance measurement signals at the base station 1 based on the transmission sequential control method and the reception sequential control method.
これをさらに詳述すると、まず無線標定移動局Ｍの位置
或は移動範囲を想定し、当該位と或は移動範囲の周辺に
３つの無線基地局ｌ、２．３を設置する。To explain this in more detail, first, the location or movement range of the radiolocation mobile station M is assumed, and three radio base stations 1 and 2.3 are installed at the location or around the movement range.
各無線基地局１．２，３には、基準時刻を設定するため
に、互いに同期した正確な時計１ｃ、２ｃ、３ｃ、或は
無線回線が設けられている。これら時計及びその同期手
段としては例えば高安定度水晶発振回路を用いたクロッ
ク発生袋この出力を更に電話回線或は無線回線によって
互いに接続して同期をとるようにすればよい、この場合
、それぞれの線路に生じる遅延を補正することによって
更に正確な基準時刻を得ることができる。各無線基地局
ｌ、２．３はこれらの時計１ｃ、２ｃ、３Ｃによって得
られる基準時刻を用いて同一周波数で逐次制御方式（シ
ーケンス）に従って重複することなく、測距信号を無線
標定移動局Ｍに送信する。Each radio base station 1.2, 3 is provided with an accurate clock 1c, 2c, 3c or a radio line synchronized with each other in order to set a reference time. These clocks and their synchronization means may be, for example, clock generators using high-stability crystal oscillator circuits, and the outputs of these clocks may be further connected to each other via telephone lines or wireless lines for synchronization. A more accurate reference time can be obtained by correcting the delay that occurs on the line. Each radio base station 1, 2.3 uses the reference time obtained by these clocks 1c, 2c, 3C to send ranging signals to the radio location mobile station M at the same frequency according to a sequential control method (sequence) without duplication. Send to.
無線基地局１．２，３からの測距信号を受信した無線標
定移動局Ｍは、受信と同時に周波数を変換して特定無線
基地局ｌへ返送する。但し、実際には無指向性アンテナ
で返送するのが一般であるため、他の無線基地局２．３
に対しても返信電波ＭＰは到達するが、少なくとも一局
に到達すれば足りる。The radio location mobile station M that has received the ranging signal from the radio base stations 1, 2, and 3 converts the frequency at the same time as the reception and sends it back to the specific radio base station l. However, in reality, it is common to send back signals using an omnidirectional antenna, so other wireless base stations 2.3
Although the reply radio wave MP reaches at least one station, it is sufficient.
この測距信号には標識用パルス信号が重畳されており、
無線基地局１．２．３からの送信波１０２．２ｏ、３．
の発信から、無線標定移動局Ｍより特定無線基地局１へ
送信された返送電波１ｉ。A beacon pulse signal is superimposed on this ranging signal,
Transmission waves 102.2o from wireless base stations 1.2.3, 3.
A return radio wave 1i is transmitted from the radio location mobile station M to the specific radio base station 1.
２ｉ、３ｉの受信までに要した時間を測定する。Measure the time required to receive 2i and 3i.
パルス波の往復時間から距離を求める手段は二次レーダ
等を用いた航空ａ衝突防止システム等に於て公知である
ので詳細は省略する。The means for determining the distance from the round trip time of the pulse wave is well known in aviation collision avoidance systems using secondary radar and the like, so the details will be omitted.
無線標定移動局Ｍからの３つの返送電波１１．２＋、３
ｉを受信した特定無線基地局１は、まず自局の測距信号
の往復時間に基いて無線基地局１から無線標定移動局Ｍ
までの距離を算出して、この距離を半径とした円周ＩＰ
を描く、この算出方法は次式（２）によって表される。Three return radio waves 11.2+, 3 from radiolocation mobile station M
The specific radio base station 1 that has received i first sends the radio location mobile station M from the radio base station 1 based on the round trip time of its ranging signal.
Calculate the distance to and set the circumference IP with this distance as the radius
This calculation method is expressed by the following equation (2).
３０ｘｌＯ’
（ｔ ｌｏ ＋ｔ １＋）／２ （Ｋｍ） ・・” （
２）次に、無線基地局２から発信された電波が無線標定
移動局Ｍを介して特定無線基地局１に到達するまでの時
間（ｔ２ｏ＋ｔ２＋）から、特定無線基地局１からの発
信電波が無線標定移動局Ｍとの間を往復するのに要する
時間（ｔｌｏ＋ｔｌｉ）の１７２を差引くことによって
、無線基地局２から無線標定移動局Ｍまでの測距信号の
伝播に要する時間を算出し、当該所要時間に基いて無線
基地局２から無線標定移動局Ｍまでの距離を算出する、
そして、この距離を半径とした円周２Ｐを描く。30xlO' (t lo +t 1+)/2 (Km)..." (
2) Next, from the time (t2o+t2+) until the radio waves emitted from the radio base station 2 reach the specific radio base station 1 via the radio location mobile station M, the radio waves emitted from the specific radio base station 1 are By subtracting 172 of the time (tlo+tli) required to travel back and forth to the location mobile station M, the time required for the propagation of the ranging signal from the radio base station 2 to the radio location mobile station M is calculated. calculating the distance from the radio base station 2 to the radio location mobile station M based on the required time;
Then, draw a circumference 2P with this distance as the radius.
この算出方法は次式（３）によって表される。This calculation method is expressed by the following equation (3).
３０ｘｌＯ’／ ［（ｔ２ｏ ＋ｔ２＋）（（ｔｌｏ＋
ｔｌ＋）／２）］ （Ｋｍ）・・・ （３）
更に、無線基地局３においても無線基地局２と同様にし
て無線標定移動局までの距離を算出し。30xlO'/ [(t2o +t2+)((tlo+
tl+)/2)] (Km)... (3) Furthermore, the distance to the radio location mobile station is calculated at the radio base station 3 in the same manner as the radio base station 2.
この距離を半径とした円周３Ｐを描く。Draw a circumference 3P with this distance as the radius.
こうして得られた３つの円周ＩＦ、２Ｐ、３Ｐに共通す
る交点が無線標定移動局Ｍの位置である、無線標定移動
局Ｍの位ははさらに地図と照合させることによって確定
される。The common intersection of the three circumferences IF, 2P, and 3P thus obtained is the position of the radiolocation mobile station M. The position of the radiolocation mobile station M is determined by further comparing it with a map.
なお上記実施例においては、無線基地局１を特定無線基
地局とした例を示したが、無線基地局１で受信できない
場合等においては他の無線基地局２．３を夫々特定無線
基地局として測定することも勿論可能である。In the above embodiment, an example was shown in which the wireless base station 1 was designated as a specific wireless base station, but in cases such as when wireless base station 1 cannot receive data, other wireless base stations 2 and 3 may be designated as specific wireless base stations. Of course, measurement is also possible.
無線基地局としては、例えば位置確認作業等の中心とな
る特定無線基地局１と、無線標定移動局Ｍの位置に応じ
て最適のポジションを得るために移設させることができ
る半固定無線、２！地局２や、無線標定移動局Ｍの位置
変化に応じて移動する車両無線基地局３等によって構成
される。各無線基地局１．２．３は全て固定方式にして
もよいし、各無線基地局で使用される空中線の種類や、
その高さは、使用周波数や無線標定移動局の送受信艶力
を考慮して決定される。The radio base stations include, for example, a specific radio base station 1 that plays a central role in position confirmation work, a semi-fixed radio that can be relocated to obtain an optimal position depending on the location of the radio location mobile station M, and 2! It is composed of a ground station 2, a vehicle radio base station 3, etc. that moves according to changes in the position of the radiolocation mobile station M, and the like. Each wireless base station 1.2.3 may be all fixed type, or the type of antenna used at each wireless base station,
Its height is determined in consideration of the frequency used and the transmitting and receiving power of the radio location mobile station.
さらに全ての無ＳＱ基地局によって同時に確認作業を行
なえば、各無線基地局において得られた複数の算出結果
同志を照合させることができるため、測定精度を向上さ
せることができる。この場合、特定無線基地局１を除く
他の無線基地局２．３における測定データは、電話回線
（ＩＬ、２Ｌ。Furthermore, if all the SQ-free base stations perform the confirmation work simultaneously, it is possible to compare the plurality of calculation results obtained at each radio base station, thereby improving measurement accuracy. In this case, the measurement data at the other wireless base stations 2.3 other than the specific wireless base station 1 is based on the telephone lines (IL, 2L).
３Ｌ）等を介して特定無線基地局ｌに集積され。3L), etc., to a specific wireless base station l.
３つの測定データに基いて解析が行なわれる。Analysis is performed based on three measurement data.
また、上記実施例においては、３箇所の無線基地局を用
いる例を示したが、４箇所以上であっても差支えない。Further, in the above embodiment, an example is shown in which three wireless base stations are used, but there may be four or more wireless base stations.
さらに、以上の説明では無線標定移動局Ｍに測距信号が
入力してから応答信号を返送する間の遅延時間を無視し
たが、実際にはこの遅延時間ｔｄを加味して距離計算を
行なうべきこと上述した通りである。この遅延時間とし
ては例えばトランスポンダを用いた航空ａ衝突防止シス
テムに於ては３±０．５ｐｓと規定されているから、お
おむねこれに準じて装置を実現するか、或は独自に所定
の規格を設ければよい。Furthermore, in the above explanation, we have ignored the delay time between when the ranging signal is input to the radiolocation mobile station M and when the response signal is sent back, but in reality, this delay time td should be taken into consideration when calculating the distance. This is as stated above. For example, this delay time is specified as 3±0.5 ps in an aviation anti-collision system using a transponder, so it is generally recommended to implement the device in accordance with this, or to create your own predetermined standard. Just set it up.
本発明方法の用途は、例えば、港湾において船舶を正確
に誘導する場合や、湾の埋立て地や各種の工事現場にお
いて必要とされる位に測定や、各種業務における移動車
両の位置の把握等、種々考えることができる。また、山
間部等において標定移動局たる人や、物体が自らの現在
位置を知りたい場合にも応用することができる。この場
合には、特定無線基地局から算出結果を標定移動局に対
して知らせる必要がある。The method of the present invention can be used, for example, to accurately guide ships in ports, to measure the required positions at bay reclaimed sites and various construction sites, and to grasp the position of moving vehicles in various operations. , you can think of various things. It can also be applied to cases where a person or an object wants to know their current position as a mobile location station in a mountainous area or the like. In this case, it is necessary to notify the location mobile station of the calculation result from the specific radio base station.
なお、上記実施例においては時系列測距信号を逐次時系
列制御方式に基いて発信しているが、無線基地局からの
信号が重複しないように手動または電話回線等を利用し
た半手動によって発信する方法も本発明の範囲に含まれ
る。In the above embodiment, the time-series ranging signal is transmitted based on a sequential time-series control method, but the transmission may be performed manually or semi-manually using a telephone line, etc. to avoid duplication of signals from wireless base stations. A method of doing so is also included within the scope of the present invention.
（考案の効果）
以上のように５本発明の無線標定移動局の位置測定方法
によれば、無線基地局から時系列で発信された測距信号
のうち、無線標定移動局からの返送電波を少なくとも一
つの無線基地局（特定無線基地局）にて受信することに
よって無線標定移動局の地図上の位置を算出することが
できる。このため、例えば無線標定移動局の移動に伴な
う地理的、地形的条件等の変動により、一つの無線基地
局における電波伝播状況が悪化しても、悪化していない
他の特定無線基地局を選定することによって位置の算出
を行なうことができる。また、複数の無線基地局を特定
無線基地局として、同一の無線標定移動局の位置を同時
に測定すると、測定精度を大幅に向上させることができ
る。(Effects of the invention) As described above, according to the method for measuring the position of a radiolocation mobile station according to the present invention, among the ranging signals transmitted in time series from the radio base station, the return radio waves from the radiolocation mobile station are By receiving at least one radio base station (specific radio base station), the position of the radiolocation mobile station on the map can be calculated. Therefore, even if the radio wave propagation situation at one wireless base station worsens due to changes in geographic and topographical conditions, etc. due to movement of a radiolocation mobile station, for example, other specified wireless base stations that have not deteriorated By selecting , the position can be calculated. Further, when the position of the same radiolocation mobile station is simultaneously measured using a plurality of radio base stations as specific radio base stations, the measurement accuracy can be greatly improved.
第１図は本発明の測定方法における無線基地局と無線標
定移動局との間の電波の送受信の態様を示す模式図、第
２図は従来の方法を用いた無線基地局と無線標定移動局
との間の電波伝播経路を示す説明図。
符 号
Ａ、Ｂ、Ｃ・・・無線基地局 ＡＬ、ＢＬ、ＣＬ・・・
電話回線 ＡＯ・・・無線基地局Ａからの送信伝播路
Ａ１・惨・無線標定移動局からの返送伝播路 ｌ、２．
３・・・無線基地局ＬＬ、２Ｌ、３Ｌφ・・電話回線
１ｏ、２ｏ、３ｏ・・・無線基地局送信伝播路 １＋、
２＋、３１・・・無線標定移動局からの送信伝播路Ｍ・
・・無線標定移動局
特許出願人 東洋通信機株式会社
代理人 弁理士 鈴 木 均
図面
第１図FIG. 1 is a schematic diagram showing how radio waves are transmitted and received between a radio base station and a radio location mobile station in the measurement method of the present invention, and FIG. 2 is a diagram showing a radio base station and a radio location mobile station using the conventional method. An explanatory diagram showing a radio wave propagation path between. Codes A, B, C... Radio base stations AL, BL, CL...
Telephone line AO...Transmission propagation path from wireless base station A
A1, Misery, Return propagation path from radio location mobile station l, 2.
3... Wireless base station LL, 2L, 3Lφ... telephone line
1o, 2o, 3o...Radio base station transmission propagation path 1+,
2+, 31... Transmission propagation path M from the radio location mobile station
...Radiolocation Mobile Station Patent Applicant Toyo Tsushinki Co., Ltd. Agent Patent Attorney Hitoshi Suzuki Drawing Figure 1
Claims (2)
無線標定移動局の位置を測定する方法において、 複数の無線基地局より無線標定移動局に対し順次測距信
号を発信し、無線標定移動局はこれら測距信号を受信す
ると同時に各無線基地局からの測距信号に対応した返送
電波を返送し、 少なくとも１の無線基地局が自局電波の往復時間及び他
の無線基地局からの測距信号が発信されてから自局に到
達するまでの時間に基いて各無線基地局から無線標定移
動局までの距離を算出することによって無線標定移動局
の位置を確定することを特徴とする無線標定移動局の位
置測定方法。(1) In a method of measuring the position of a radiolocation mobile station located within the service area of multiple radio base stations, ranging signals are sequentially transmitted from the multiple radio base stations to the radiolocation mobile station, and radiolocation movement is performed. At the same time that the station receives these ranging signals, it sends back radio waves corresponding to the ranging signals from each radio base station, and at least one radio base station calculates the round trip time of its radio waves and the measurements from other radio base stations. A radio device characterized in that the position of a radiolocation mobile station is determined by calculating the distance from each radio base station to the radiolocation mobile station based on the time from when a distance signal is transmitted until it reaches the own station. Location measurement method for mobile station.
対して順次発信される前記測距信号は、該複数の無線基
地局にそれぞれ設けられた互いに同期する時計によって
得られる基準時間に基いた送信逐次制御方式に基いて該
無線標定移動局に対して時系列測距信号として発信され
、 該時系列測距信号と、該無線標定移動局から返送された
返送測距信号とを逐次制御方式に基いて遅延照合するこ
とを特徴とする特許請求の範囲第１項記載の無線標定移
動局の位置測定方法。(2) The ranging signals sequentially transmitted from the plurality of radio base stations to the radiolocation mobile station are based on a reference time obtained by mutually synchronized clocks provided in each of the plurality of radio base stations. A time-series ranging signal is transmitted to the radiolocation mobile station based on a transmission sequential control method, and the time-series ranging signal and the return ranging signal returned from the radiolocation mobile station are sequentially controlled. 2. A method for measuring the position of a radiolocation mobile station according to claim 1, characterized in that delay verification is performed based on a method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62070587A JPS63235877A (en) | 1987-03-25 | 1987-03-25 | Position measurement for radiolocation mobile station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62070587A JPS63235877A (en) | 1987-03-25 | 1987-03-25 | Position measurement for radiolocation mobile station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63235877A true JPS63235877A (en) | 1988-09-30 |
| JPH0516752B2 JPH0516752B2 (en) | 1993-03-05 |
Family
ID=13435839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62070587A Granted JPS63235877A (en) | 1987-03-25 | 1987-03-25 | Position measurement for radiolocation mobile station |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63235877A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5689820A (en) * | 1992-05-29 | 1997-11-18 | Tadiran Ltd. | Vehicle location unit |
| JP2010515916A (en) * | 2007-01-08 | 2010-05-13 | 韓國電子通信研究院 | Position measurement method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61150374U (en) * | 1985-03-09 | 1986-09-17 | ||
| JPS6239798U (en) * | 1985-08-27 | 1987-03-10 |
-
1987
- 1987-03-25 JP JP62070587A patent/JPS63235877A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61150374U (en) * | 1985-03-09 | 1986-09-17 | ||
| JPS6239798U (en) * | 1985-08-27 | 1987-03-10 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5689820A (en) * | 1992-05-29 | 1997-11-18 | Tadiran Ltd. | Vehicle location unit |
| JP2010515916A (en) * | 2007-01-08 | 2010-05-13 | 韓國電子通信研究院 | Position measurement method |
| US8346283B2 (en) | 2007-01-08 | 2013-01-01 | Electronics And Telecommunications Research Institute | Method for location determinating |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0516752B2 (en) | 1993-03-05 |
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