RU2011112545A - SIGNAL DETECTION METHOD - Google Patents
SIGNAL DETECTION METHOD Download PDFInfo
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- RU2011112545A RU2011112545A RU2011112545/07A RU2011112545A RU2011112545A RU 2011112545 A RU2011112545 A RU 2011112545A RU 2011112545/07 A RU2011112545/07 A RU 2011112545/07A RU 2011112545 A RU2011112545 A RU 2011112545A RU 2011112545 A RU2011112545 A RU 2011112545A
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- RU
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- correlation function
- frequency
- signals
- signal
- time delay
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Abstract
Способ обнаружения сигнала по наличию превышения над пороговым значением максимума корреляционной функции принимаемого сигнала и опорного сигнала, который получают, используя копию излученного сигнала, при этом перед вычислением упомянутой корреляционной функции сигналов преобразуют их частоту, осуществляя компенсацию различия в частоте сигналов путем мультипликативного смещения частотного спектра сигналов, отличающийся тем, что отраженный и опорный сигналы умножают и делят по фазе на два, выделяют гармонические напряжения, перемножают их между собой, выделяют напряжение доплеровской частоты, по величине и знаку которой определяют величину и направление радиальной скорости подвижного объекта, которую используют для мультипликативного смещения спектра опорного сигнала, затем опорный сигнал пропускают через блок регулируемой задержки, перемножают его с принятым сигналом, выделяют низкочастотное напряжение, пропорциональное корреляционной функции R(τ), где τ - текущая временная задержка, изменением временной задержки τ поддерживают максимум корреляционной функции R(τ), фиксируют временную задержку τЗ между зондирующим и отраженными сигналами, соответствующую максимуму корреляционной функции R(τ), и по ее значению определяют дальность до подвижного объекта. A method for detecting a signal by the presence of an excess of the threshold value of the correlation function of the received signal and the reference signal, which is obtained using a copy of the emitted signal, and before calculating the said correlation function of the signals, their frequency is converted, compensating for differences in the frequency of the signals by multiplicatively shifting the frequency spectrum of the signals characterized in that the reflected and reference signals are multiplied and phase-divided by two, harmonic voltages are isolated, alternating press them together, isolate the voltage of the Doppler frequency, the magnitude and sign of which determines the magnitude and direction of the radial speed of the moving object, which is used to multiplicatively shift the spectrum of the reference signal, then the reference signal is passed through an adjustable delay unit, multiplied by the received signal, and the low-frequency the voltage proportional to the correlation function R (τ), where τ is the current time delay, the maximum correlation function is maintained by changing the time delay τ R (τ), fix the time delay τЗ between the probing and reflected signals corresponding to the maximum of the correlation function R (τ), and the distance to the moving object is determined by its value.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2011112545/07A RU2011112545A (en) | 2011-04-01 | 2011-04-01 | SIGNAL DETECTION METHOD |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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RU2011112545/07A RU2011112545A (en) | 2011-04-01 | 2011-04-01 | SIGNAL DETECTION METHOD |
Publications (1)
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RU2011112545A true RU2011112545A (en) | 2012-10-10 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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RU2011112545/07A RU2011112545A (en) | 2011-04-01 | 2011-04-01 | SIGNAL DETECTION METHOD |
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RU (1) | RU2011112545A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110554374A (en) * | 2018-05-30 | 2019-12-10 | 立积电子股份有限公司 | method and device for detecting existence of object in environment |
-
2011
- 2011-04-01 RU RU2011112545/07A patent/RU2011112545A/en not_active Application Discontinuation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110554374A (en) * | 2018-05-30 | 2019-12-10 | 立积电子股份有限公司 | method and device for detecting existence of object in environment |
CN110554374B (en) * | 2018-05-30 | 2023-06-09 | 立积电子股份有限公司 | Method and device for detecting existence of object in environment |
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Legal Events
Date | Code | Title | Description |
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FA92 | Acknowledgement of application withdrawn (lack of supplementary materials submitted) |
Effective date: 20150203 |