RU2014154619A - METHOD FOR DETERMINING THE RANGE TO THE OBJECT WITH A SOURCE OF RADIATION OF SIGNALS WITH DIFFERENT FREQUENCIES - Google Patents
METHOD FOR DETERMINING THE RANGE TO THE OBJECT WITH A SOURCE OF RADIATION OF SIGNALS WITH DIFFERENT FREQUENCIES Download PDFInfo
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- RU2014154619A RU2014154619A RU2014154619A RU2014154619A RU2014154619A RU 2014154619 A RU2014154619 A RU 2014154619A RU 2014154619 A RU2014154619 A RU 2014154619A RU 2014154619 A RU2014154619 A RU 2014154619A RU 2014154619 A RU2014154619 A RU 2014154619A
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- Prior art keywords
- phase
- values
- signals
- difference
- value
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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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
- G01S13/84—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted for distance determination by phase measurement
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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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
Abstract
1. Способ определения дальности до объекта с источником излучения сигналов с разными частотами, заключающийся в одновременном приеме не менее двух сигналов с разными частотами и последующем измерении фаз принятых сигналов относительно фаз сигналов опорного генератора при беззапросном методе измерений, отличающийся тем, что осуществляют преобразование измеренного значения фазы каждого сигнала в цифровое значение временного интервала между сигналом опорного генератора и принятым сигналом при беззапросном методе измерений, или временного интервала между переданным и принятым сигналом при радиолокации, ориентированной на использование фазового метода измерений, а расстояние вычисляют с использованием адаптивной формулы, число звеньев которой на единицу больше значения абсолютной разности между модулями сравнений:где х - восстановленное значение дальности с раскрытием неоднозначности измерений;b- образы-остатки (интерпретируемые как значения, пропорциональные измеренным значениям фаз, например как значения остатков, соответствующих измеренному значению фазы, умноженному на соответствующую длину волны λ, s=1,2;m- модули сравнения, под которыми понимают длины волн принимаемых сигналов λ, s=1,2;Δb=(b-b) - разность образов-остатков b, которую интерпретируют в соответствии с выбранной математической моделью, как разность фаз Δ-(φ-φ) (такая модель более точно учитывает существующую практику измерений дальности фазовым методом, когда помимо масштабных частот для разрешения неоднозначности используют комбинированные разностные частоты и позволяет без особых сложностей использовать в практике радиотехнических измерений матема1. A method for determining the distance to an object with a radiation source of signals with different frequencies, which consists in simultaneously receiving at least two signals with different frequencies and then measuring the phases of the received signals relative to the phases of the signals of the reference oscillator with an unquestioned measurement method, characterized in that the measured value is converted phase of each signal into a digital value of the time interval between the signal of the reference oscillator and the received signal with a non-request measurement method, or times the interval between the transmitted and received signals during radar, oriented to the use of the phase measurement method, and the distance is calculated using an adaptive formula, the number of links of which is one more than the absolute difference between the comparison modules: where x is the reconstructed range value with the disclosure of the measurement ambiguity; b - residual images (interpreted as values proportional to the measured phase values, for example, as values of residues corresponding to the measured phase value, mind married to the corresponding wavelength λ, s = 1.2; m- comparison modules, by which we mean the wavelengths of the received signals λ, s = 1.2; Δb = (bb) is the difference of the residual images b, which is interpreted in accordance with chosen by the mathematical model, as the phase difference Δ- (φ-φ) (such a model more accurately takes into account the existing practice of measuring ranges by the phase method, when in addition to the scale frequencies, combined difference frequencies are used to resolve the ambiguity and allows using radio engineering in practice math measurements
Claims (2)
Priority Applications (1)
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RU2014154619A RU2607639C2 (en) | 2014-12-31 | 2014-12-31 | Method of determining range to object with radiation source signals with different frequencies |
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RU2014154619A RU2607639C2 (en) | 2014-12-31 | 2014-12-31 | Method of determining range to object with radiation source signals with different frequencies |
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RU2014154619A true RU2014154619A (en) | 2016-07-27 |
RU2607639C2 RU2607639C2 (en) | 2017-01-10 |
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RU2014154619A RU2607639C2 (en) | 2014-12-31 | 2014-12-31 | Method of determining range to object with radiation source signals with different frequencies |
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Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2718249B1 (en) * | 1994-04-05 | 1996-04-26 | Thomson Csf | Radar distance measuring method and device. |
RU2206102C1 (en) * | 2001-10-25 | 2003-06-10 | НИИ Приборостроения им. В.В. Тихомирова | Procedure measuring range and velocity by pulse-doppler radar |
JP2005181180A (en) * | 2003-12-22 | 2005-07-07 | Tdk Corp | Radar system |
US7265710B2 (en) * | 2004-11-12 | 2007-09-04 | Northrop Grumman Corporation | Multipath height finding method |
US8723720B2 (en) * | 2011-05-03 | 2014-05-13 | Harris Corporation | Wireless location detection and/or tracking device and associated methods |
RU2469349C1 (en) * | 2011-06-08 | 2012-12-10 | Федеральное государственное унитарное предприятие "Специальное научно-производственное объединение "Элерон" (ФГУП "СНПО "Элерон") | Method of determining range to object with emitting source of signals with different frequencies |
RU2515571C1 (en) * | 2012-10-05 | 2014-05-10 | Федеральное государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный университет телекоммуникаций им. проф. М.А. Бонч-Бруевича" | Method of determining coordinates of target in three-position ranging radar system |
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2014
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Effective date: 20170101 |