WO2015012741A1

WO2015012741A1 - Radio system

Info

Publication number: WO2015012741A1
Application number: PCT/RU2014/000553
Authority: WO
Inventors: Владимир Петрович ПАНОВ
Original assignee: Panov Vladimir Petrovich
Priority date: 2013-07-26
Filing date: 2014-07-23
Publication date: 2015-01-29
Also published as: RU2542579C1; RU2013135131A

Abstract

The present radio system makes it possible to unambiguously measure the spatial coordinates of radio objects, including moving radio objects, transmitting radio signals. The radio system comprises a ground-based multi-point radio signal transmitting system with N ≥ 5 radio signal transmitting points which are numbered in order, the coordinates of the phase centers of the antennas of which are known to the radio object. The transmitting points are capable of synchronized, ordered transmission of radio signals by series. Each radio object comprises, functionally associated with one another, a radio signal receiving device capable of receiving radio signals and identifying same according to the corresponding transmitting point, and a recording device for recording the time of arrival of said radio signals in a time-keeping system set on the radio object, and an information system capable of measuring the coordinates of the phase centre of a radio object antenna on the basis of the above-mentioned coordinates and the times of arrival of the radio signals in series using the proposed measurement equations. The information system is capable of measuring other trajectory characteristics of the radio object on the basis of the coordinates of the radio object measured in series, inter alia using statistical methods of trajectory measurements. The radio system does not require joint synchronization of all of the radio signal transmitting and receiving radio objects.

Description

Title of invention:

Radio system

Technical field

The invention relates to communication technology, and more particularly, to radio engineering systems for transmitting and receiving radio signals and extracting information. Such systems include, in particular, radio navigation and radar systems, radio reconnaissance systems for radio equipment, radio surveillance of the Earth's surface, etc. [Radio engineering systems / UM. Kazarinov et al. Ed. Yu.M. Kazarinova. -M .: IC "Academy", 2008, p. 7]. The inventive system contains a radio signal receiving radio engineering objects, stationary or mobile, and a ground-based point transmitting radio signal system, including an orderly numbered radio signal transmitting points, at least five, the coordinates of the phase centers of the antennas of which are known on the radio signal receiving radio signals objects. The implementation of the system will make it possible, among other things, to determine the spatial coordinates of the indicated radio engineering objects, simplify the corresponding information extraction systems, and increase their technical and economic efficiency, taking into account all the components that affect the cost and technical indicators.

State of the art

Known radio engineering systems for transmitting and receiving radio signals and extracting information are used, inter alia, to determine the coordinates of radio engineering objects and are based on the use of goniometric, rangefinder, difference and total-rangefinder and combined methods for determining the location of an object with amplitude, time, frequency , phase and pulse-phase measurement methods radio signal parameters [RF patents JY ° J4 201 8855, 21 1 5 137, 2258242, 2264598, 2309420, 2325666, 2363 1 17, 2371737, 2378660; Fundamentals of testing aircraft / E.I. Krynetsky et al. Ed. E.I. Krinetskogo.-M .: Mashinostr., 1979, p. 64-89; Radio engineering systems / Yu.M. Kazarinov et al. Ed. Yu.M. Kazarinova. -M .: IC "Academy", 2008, p.17-18, pp. 7.1-7.4, ch. 10.; Melnikov Yu.P., Popov SV. Radio intelligence. Methods for assessing the effectiveness of the determination of radiation sources. - M .; Radio Engineering, 2008, Ch. 5] . Known systems have one or another disadvantage, for example, the need for mechanical movement of the antenna system, the impossibility of unambiguous determination of the coordinates of the object, the need for a priori information about the location of the object, the need for general synchronization of radio-technical objects transmitting and receiving radio signals, and insufficient reliability. According to the criterion of minimum sufficiency, the closest is the system for transmitting and receiving radio signals and extracting information according to patent RU N ° 2453996.

Disclosure of invention

An advantage of the claimed system compared to the known ones is the possibility of increasing the technical and economic efficiency of radio engineering complexes for measuring spatial coordinates and other characteristics of an object functionally related to its coordinates, including ensuring the accuracy and reliability of their measurement in accordance with with modern requirements. This is achieved by the fact that the claimed system, in particular, does not require general synchronization of the set of transmitting and receiving radio signals of radio engineering objects. Also, the inventive system allows you to determine spatial coordinates by indirect measurement using simple expressions, depending on the measured moments of times of reception of radio signals at receiving radio signals from a radio engineering facility. Thanks to this, the unambiguous determination of spatial coordinates is simplified.

To achieve the specified technical result in accordance with the present invention, the radio engineering system comprises a ground-based point transmitting radio signals system and receiving radio signals radio engineering objects, stationary or mobile, while the specified ground-based point transmitting radio signals system includes orderly numbered transmitting radio signals points, in the amount of N at least five, each of them contains antenna devices, the phase centers of the transmitting antennas of which are in a given x, raspolo- not conjugated in the same plane, and known, including said objective minute, at coordinates _{_{_{X n, Y n, Z n}}} > where the index n ranges from 1 to N, Correspondingly, in a predetermined three-dimensional Cartesian coordinate system (Χ, Υ, Ζ), and transmitting radio signals of the device connected to the antenna devices, capable of synchronized ordered transmission of radio signals by series, mainly one radio signal from each point transmitting radio signals in a series, with specified not necessarily the same interval between series, if necessary, the indicated transmitting radio signals of the device are made with the possibility of transmitting radio signals with predetermined individual characteristics, including complex and composite radio signals with predetermined individual characteristics of their elements and the possibility of their separation during reception, and if necessary, with specified not necessarily the same, and known on the mentioned receiving radio signals radio engineering objects time delays between the radio signals, and each receiving radio signals is iotehnichesky object comprises antenna device, paired with an him receiving radio unit adapted the possibility of receiving radio signals from the ground-based point transmitting radio signals of the system and identifying them with the corresponding points transmitting radio signals, the time recorder of the times of receiving radio signals from the said points transmitting radio signals in a time reference system connected to the receiving radio signals, connected to the receiving device of the radio signals, and information system, functionally connected with the registrar and configured to store the specified coordinates X _n , Y _n , Z _n , the specified specified delay times, if necessary, and with the possibility, if necessary, of centering the indicated times of the reception of radio signals, including, if necessary, with the specified delay times excluded, by eliminating the average value from each time of all moments of the series times and determination of the recorded time moments t „in this way, the indicated information system is also capable of measuring parameters d _n with a dimension of length d _n = υί _η , where υ is the velocity of the space of the radio signal, and through the measured parameters d _n and the mentioned coordinates X _n , Y _n , Z _n measure the parameters c,, where the index varies from 0 to 6, parameters a _} with a fourth-dimensional length, where the index j varies from 1 to 6, and b para- meters _to a length dimension in the fifth degree, where the index k ranges from 1 to 3, in accordance with the measurement equations

Ν Ν Ν Ν Ν

with ₀ Σ ^Ζ «- ^with s Σ 4Л + ^c 6 Σ ^Ζ « · ^α 6 = with ₀ Σ ^R « ^z » - ^with s Σ ^d » ^z » + ^c 6

where the parameter D = x ² + Y + z ² , with the possibility of measuring through the parameters i _for parameters A, where the index varies from 0 to 6, in accordance with the equations of measurements

Ao = α, α ₂ α ₃ + 2α ₄ α ₅ α ₆ -

, A ₂ = a _x a ₃ - a], A ₃ = α α ₂ - a], = ^a 5 ° 6 - ^a 1 ^a 4 » ^A 5 = ^a 4 ^a b - ^a 2 ^a 5» A = ^ 5 ~ ° i ^a 6 ”(4) and with the possibility of measuring the spatial coordinates of the phase center of the receiving antenna of the radio signal object χ, γ, ζ receiving radio signals mainly through the parameters A, and b _to in accordance with the measurement equations

x = (A _l b _L + A ₄ b ₂ + A ₅ b ₃ ) / A ₀ , y = (A ₄ b _L + A ₂ b ₂ + A ₆ b ₃ ) / A ₀ , z = (A _i b _x + AJJ ₂ + A ₃ b ₃ ) / A ^, ^ if necessary, the information system is also capable of storing the χ, γ, ζ coordinates measured in series, and measuring other path characteristics of the receiving radio signal through them object, including using statistical methods of trajectory measurements, while receiving radio signals the radio engineering object, if necessary, contains a display unit and a unit for transmitting information to consumers, functionally associated with the specified information system, while the ground-based point transmitting radio signals system, if necessary, contains a unit for receiving and displaying information configured to receive information transmitted by the specified a unit for transmitting information to consumers of a radio object receiving a radio signal, in addition, if necessary, to a ground-based transmitting radio signal point On the whole, a control radio signal receiving radio object has been introduced, capable of receiving radio signals transmitted by the above-mentioned points of a ground-based point transmitting radio signal system with the coordinates of the phase center of its antenna x _K specified in the indicated three-dimensional Cartesian coordinate system (Χ, Υ, Ζ) , y _K , z _K , the constituent elements of which are made essentially identical to the constituent elements of the aforementioned radio signals receiving radio object, while the information system mentioned The removed radio control object is additionally configured to correct the indicated measured coordinates x, y, z by known coordinates x _K , y _K , z _K and the measured coordinates x _KU , y _KU , z _{m of the} phase center of the receiving antenna of the control receiving a radio signal of a radio engineering object, also a ground-based point transmitting radio signal system contains a subsystem for controlling its operation.

In the current level of technology, no sources of information have been identified that would contain information about systems of the same purpose with the indicated set of features.

The implementation of the invention

Below the invention is described in more detail with reference to the figure. The figure shows the inventive system. The radio engineering system 1 contains a ground-based point transmitting radio signal system (PS) 2 and a radio object receiving (radio) radio engineering object (RO) 3. In this case, the MS 2 includes the orderly numbered transmitting radio signals of paragraph 4 (N ° N- > \, 2, ..., n, ..., N) in an amount of N He less than five. Each of them contains antenna devices 5, the phase centers of the transmitting antennas of which are in predetermined, not located in the same plane, and known, including at the mentioned objects, points with coordinates X _n , Y _n , Z _n , where Dex n varies from 1 to Ν, respectively, in a given three-dimensional Cartesian coordinate system (X, Υ, Ζ). Radio antenna devices 5 are connected to antenna devices 5.

Devices 6 are made with the possibility of synchronized ordered transmission of r / s series, mainly one r / s from each transmitting r / s point 4 in the series, and with specified not necessarily the same intervals between the series. If necessary, devices 6 are made with the possibility of transmitting r / s with predetermined individual attributes, including complex and composite r / s with predetermined individual attributes of their elements [L. Varakin. Theory of signal systems. M., "Owls. radio ”, 1978, p.18] and the possibility of their separation at reception. Also, if necessary, the device 6 is configured to transmit r / s with presets that are not necessarily the same, and the time delays known between the received r / s PO 3 and between p / s.

Each receiving r / s PO 3 contains an antenna device 7 and a receiving r / s device 8 connected to it. The latter is configured to receive the r / s of the ground PS 2 and identify them with the corresponding transmitting r / s points 4. PO 3 contains a recorder of 9 times of receiving r / s from transmitting r / s points 4 in the system specified on PO 3 countdown time. The registrar 9 is connected to the receiving r / s device 8. The PO 3 contains an information system 10 functionally connected with the registrar 9 and configured to store the specified coordinates X „, Y„, Z _n and the specified delay times, if necessary. Also formational invariant system 10 is configured to, if necessary, said centering moments of reception times p / s, including if necessary the excluded specified time delays, and definitions for the Nia thus moments times t _n u measuring said parameters d _n , the measurements of the mentioned parameters c,, and _y , b _k , A, in accordance with the measurement equations (1), (2), (3) and (4). Furthermore, the information system 10 is configured to measure the spatial coordinates of the phase center of the antenna of the receiving antenna device 7 p / s PO 3 mainly via parameters A and b correspond _to a measurement with the equations (5).

If necessary, information system (10) is made with the possibility of storing χ, γ, ζ measured in series of the indicated coordinates, measuring other path characteristics of PO 3 through them, including using statistical methods of path measurements. Moreover, PO 3, if necessary, contains a display unit 11 and an information transmission unit to consumers 12, functionally associated with the information system 10. PS 2, if necessary, contains an information reception and display unit 13 configured to receive information transmitted by said transmission unit information to consumers 12 RO 3.

In addition, if necessary, in PS 2, a control receiving radio electronic object (RRO) 14 is introduced, configured to receive radio signals transmitted by points 4 with the coordinates specified in the indicated three-dimensional Cartesian coordinate system (Χ, Υ, Ζ) phase center of it antennas x _K , y _K , z _K , the constituent elements of which are made predominantly identical to the constituent elements of PO 3. Moreover, the information system 10 of the KPO 14 is additionally configured to correct the indicated measured coordinates x, y, z from known coordinates x _K , _{K i} z _K and the measured coordinates x _KU , y _KU , z _{KU of the} phase center of the receiving antenna

KRO 14. Also PS 2 contains a subsystem 15 for controlling its operation.

The proposed system 1 operates as follows.

Substation 2 transmits r / s synchronized. In this case, the r / s are transmitted in order by series, mainly one r / s from each transmitting r / s point 4 containing the antenna device 5 and the transmitting r / s device 6, in a series. The intervals between series are not necessarily the same. If necessary, transmitting r / s points 4 transmit r / s with predetermined individual characteristics, including complex and composite r / s with predetermined individual characteristics of their elements and the possibility of their separation during reception. Also, if necessary, p / s are transmitted with predetermined, not necessarily the same, and known by PO 3 time delays between p / s. The radio signals are received on a specific PO 3 and identified by their respective transmitting p / s points 4. At this object, the registrar 9 records the times of receiving p / s in the time reference system set on it. If necessary, the information system 10 excludes the corresponding specified delay times from them. In it, the indicated moments of p / s reception times with excluded delay times are, if necessary, centered by eliminating from each moment of time the average value of all moments of the series. Based on the thus recorded time instants t _n, the mentioned parameters d _n are measured. In the information system 10 PO 3 through the specified coordinates X _n , Y _n , Z _n and the measured parameters d _n measure the parameters c _{,, a}} , b _k and A, in accordance with the measurement equations (1), (2), (3) and (4). And finally, the spatial coordinates x, y, z of the phase center of the receiving antenna PO 3 are measured mainly through the parameters A, and b _k in accordance with the measurement equations (5). If necessary, the series and all the indicated actions in them are repeated and other trajectory characteristics of this object are measured using the x, y, z PO 3 coordinates measured in the series, including using statistical methods of trajectory measurements. If necessary, this information is displayed and transmitted to consumers in blocks 11 and 12, respectively. If necessary, information transmitted to consumers is received and displayed in block 13 on PS 2.

In addition, if necessary, the r / s of SS 2 is also received at KRO 14 with the coordinates of the phase center of its receiving antenna x _K , y _K , z _K specified in the indicated three-dimensional Cartesian coordinate system (X, Y, Z).

At the same time, at KRO, 14 r / s are taken predominantly identically to the reception of p / s at PO 3. The coordinates ^ γ ^,, ζ ^ of the phase center of the receiving antenna of KRO

14 are measured identically to the indicated measurement of the coordinates of PO 3. Then, the measured coordinates x, y, z of PO 3 are corrected by the known coordinates x _K , _K , z _K and the measured coordinates of _m , y _m , z _{U of the} phase center of the receiving antenna of KPO 14.

Industrial applicability

We list the main advantages of the system:

- provides an unambiguous determination of the spatial coordinates of the object with great accuracy that meets modern requirements,

- general synchronization of the aggregate of transmitting and receiving radio signals of radio engineering objects is not required, - provides the ability to make measurements using one of the known radio engineering methods and the existing elemental base and microprocessor technology,

- the implementation of the system is simpler and cheaper than well-known analogues,

- spatial coordinates are determined by indirect measurement using simple expressions.

The effectiveness and efficiency of using the claimed system lies in the fact that it can be applied in practice for the development and improvement of radio engineering systems for determining, mainly, the coordinates of objects, as well as in other applications. Thus, the claimed system provides the emergence of new properties. The analysis made it possible to establish: there are no systems with a set of features identical to all the features of the claimed technical solution, which indicates the conformity of the claimed system to the “novelty” condition.

Also, the popularity of the effect of the actions provided for by the essential features of the claimed invention on the achievement of the specified result was not revealed. Therefore, the claimed invention meets the condition of patentability "inventive step".

Claims

Claim

A radio engineering system comprising a ground-based point transmitting radio signal system and receiving radio signals radio engineering objects, stationary or mobile, wherein said ground-based point transmitting radio signal system includes orderly numbered radio signal transmitting points in an amount of N He of less than five, each of them contains antenna devices, the phase centers of the transmitting antennas of which are in predetermined, not located in the same plane, and known, including on the mentioned objects, kax with coordinates X „, Y„, Z _n , where the index n varies from 1 to N, respectively, in a given three-dimensional Cartesian coordinate system (Χ, Υ, Ζ), and transmitting radio signals of the device connected to the antenna devices, made with the possibility of synchronized ordered transmission of radio signals in series, mainly on one radio signal from each point transmitting radio signals in a series, with not necessarily the same intervals between series specified, if necessary, said radio transmitting devices They are capable of transmitting radio signals with specified individual characteristics, including complex and composite radio signals with given individual characteristics of their elements and the possibility of their separation when receiving, and if necessary, with specified, not necessarily the same, and known on the mentioned radio signals receiving radio signals by time delays between radio signals, and each radio signal receiving radio signals contains an antenna device connected to it receives osignaly device configured with the possibility of receiving terrestrial radio transmitting punktovoy radiosig- Nala system and identifying the corresponding transmitting radio signals to points, a time recorder for receiving radio signals from said points transmitting radio signals in a time reference system set up at a radio signal receiving unit and connected to a device receiving radio signals, and an information system operably connected to the recorder and configured to store said predetermined coordinates X _n , Y _n , Z _n , the specified specified delay times, if necessary, and with the possibility, if necessary, of centering the specified moments of time pr the reception of radio signals, including, if necessary, with the indicated delay times excluded, by eliminating from each moment of time the average value of all moments of the series time and determining thus recorded moments of time t _n , the indicated information system is also capable of measuring parameters d _n Stu length to the dimension d _n _n = vt where υ - radio signal propagation speed, and after the measured parameters d _n and the said coordinates X _n, Y _n, Z _n the measurement of the parameter s, where the index changes of 0 to 6, with the parameters _a} the dimension of length to the fourth power, where the index j runs from 1 to 6 and the parameters b _k with the length dimension of the fifth power, where the index k ranges from 1 to 3, in accordance with measurement equations

Nnn

a. ah, = 0 Σ ^X n ^Z n - ^C 2 Σ ^d n ^Z n + ^C 5 Σ ^Z >

where is the parameter

= Х _п ^г + У „ ² + Ζ ² , with the possibility of measuring through the parameters а _{for the} parameters A _t , where the index / varies from 0 to 6, in accordance with the equations of measurements = а _х а ₂ а _г + 2а ₄ а ₅ a ₆ - a _x al - a ₂ a] -

, A _x = a ₂ a _b -a], A ₂ = a _x a _g - a], A ₃ = a _x a _g

and ₅ and ₆ - ₄ and _z, A = ₅ and ₄ and ₆ - a ₂ and _5, and A ₆ = ₄ and ₅ - and _x and _6, and with the possibility Measurements of spatial coordinates of the phase center of the receiving antenna receives radio signals of radio engineering object x, y, z mainly through the parameters A, and b _to in accordance with the measurement equations x = (A _x b _x + A ₄ b ₂ + A ₅ b ₃ ) / A ₀ , y = (A ₄ b _x + A ₂ b ₂ + A ₆ b ₃ ) / A ₀ , z = (A ₅ b _l + Α ₂ + A ₃ b ₃ ) / Α ₀ ,

also, if necessary, the information system is made with the possibility of storing χ, γ, ζ measured in series of the indicated coordinates, measuring through them other trajectory characteristics of the receiving radio signals of a radio engineering object, including using statistical methods of trajectory measurements, this radio signal receiving object, if necessary, contains a display unit and a unit for transmitting information to consumers, functionally associated with the specified information system, a removable point transmitting radio signal system, if necessary, contains a unit for receiving and displaying information, configured to receive information, transmitted by the indicated information transmission unit to the consumers of the radio signal receiving radio object, in addition, if necessary, a ground receiving radio signal system has a control radio signal receiving radio object configured to receive radio signals transmitted by said points of the ground point transmitting radio signal systems with the coordinates of the phase center of its antenna x _K , y _K , z _K , given in the indicated three-dimensional Cartesian coordinate system (Χ, Υ, Ζ) the main elements of which are made essentially identical to the constituent elements of the aforementioned radio signal receiving object, while the information system of the said radio object is additionally capable of correcting said measured coordinates x, y, z from known coordinates x _K , y _K , z _K and measured - to the coordinates x ^ y ^ z ^ of the phase center of the receiving antenna of the control receiving radio signals of a radio engineering object, also a ground-based point transmitting radio Nala system includes a subsystem th control its operation.