RU2014100409A - METHOD OF TACT SYNCHRONIZATION BY INFORMATION SIGNALS WITH CRC CHECK - Google Patents
METHOD OF TACT SYNCHRONIZATION BY INFORMATION SIGNALS WITH CRC CHECK Download PDFInfo
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- RU2014100409A RU2014100409A RU2014100409/08A RU2014100409A RU2014100409A RU 2014100409 A RU2014100409 A RU 2014100409A RU 2014100409/08 A RU2014100409/08 A RU 2014100409/08A RU 2014100409 A RU2014100409 A RU 2014100409A RU 2014100409 A RU2014100409 A RU 2014100409A
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- signal
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- crc
- error
- communication channel
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- Synchronisation In Digital Transmission Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
Способ тактовой синхронизации по информационным сигналам с проверкой по CRC, заключающийся в том, что принимают дискретную информацию в виде кодовых слов с исправлением ошибок, отличающийся тем, что к передаваемому от источника сообщений блоку информации вычисляют и добавляют CRC, кодируют помехоустойчивым кодом, модулируют и передают сигнал сообщения по каналу связи, принимаемый из канала связи сигнал демодулируют, декодируют, вычисляют CRC и при условии безошибочного декодирования принятый информационный блок отдают получателю сообщений, а также вычисляют и добавляют CRC, кодируют помехоустойчивым кодом, модулируют, после чего полученный сигнал передают в блок вычисления автокорреляционной функции (АКФ), затем проверяют корреляционные свойства полученного сигнала и при удовлетворяющих заданным требованиям АКФ, сигнал подают на первый вход блока вычисления взаимокорреляционной функции (ВКФ), на второй вход которого подают принимаемый из канала связи сигнал, результат вычисления ВКФ-массив отсчетов функции взаимной корреляции передают в блок принятия решения, в котором определяют положение максимального значения в массиве, получая, таким образом, искомое положение тактовой синхронизации.A clock synchronization method for information signals with CRC verification, which consists in receiving discrete information in the form of error correction codewords, characterized in that the CRC is calculated and added to the information block transmitted from the message source, encoded with an error-correcting code, modulated and transmitted the message signal on the communication channel, received from the communication channel, the signal is demodulated, decoded, calculated CRC and, subject to error-free decoding, the received information block is sent to the message recipient th, as well as calculate and add CRC, encode an error-correcting code, modulate, after which the received signal is transmitted to the autocorrelation function (ACF) calculation unit, then the correlation properties of the received signal are checked and, if the ACF meets the specified requirements, the signal is fed to the first input of the inter-correlation calculation unit function (VKF), to the second input of which a signal is received from the communication channel, the calculation result of the VKF array of samples of the cross-correlation function is passed to the decision block, in which determine the position of the maximum value in the array, thus obtaining the desired position of the clock synchronization.
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RU2014100409/08A RU2568304C2 (en) | 2014-01-09 | 2014-01-09 | Method of clock synchronisation against data signals with crc test |
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RU2014100409/08A RU2568304C2 (en) | 2014-01-09 | 2014-01-09 | Method of clock synchronisation against data signals with crc test |
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RU2014100409A true RU2014100409A (en) | 2015-07-20 |
RU2568304C2 RU2568304C2 (en) | 2015-11-20 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2628263C2 (en) * | 2015-10-22 | 2017-08-15 | Публичное акционерное общество "Российский институт мощного радиостроения" (ПАО "РИМР") | Method of setting bit synchronization on information signals based on results of decoding |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2711256C1 (en) * | 2019-04-01 | 2020-01-15 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Омский государственный технический университет" | Method of clock and frame synchronization with quality estimation during transmission of discrete messages by amplitude-manipulated signals with multiple frequency-time diversity |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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SU879802A2 (en) * | 1979-09-13 | 1981-11-07 | Военный Инженерный Краснознаменный Институт Им. А.Ф.Можайского | Device for synchronizing noise-like signals |
SU1003372A2 (en) * | 1981-10-22 | 1983-03-07 | Военный Инженерный Краснознаменный Институт Им.А.Ф.Можайского | Device for synchronizing noise-like signals |
RU2296432C1 (en) * | 2005-10-07 | 2007-03-27 | Военно-космическая академия имени А.Ф. Можайского | Method for autocorrelation receipt of noise-like signals |
RU2434334C1 (en) * | 2010-07-20 | 2011-11-20 | Открытое акционерное общество "Российский институт мощного радиостроения" | Method of evaluating reception integrity of multi-position differential phase shift keyed signals |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2628263C2 (en) * | 2015-10-22 | 2017-08-15 | Публичное акционерное общество "Российский институт мощного радиостроения" (ПАО "РИМР") | Method of setting bit synchronization on information signals based on results of decoding |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20160110 |
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NF4A | Reinstatement of patent |
Effective date: 20180403 |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20200110 |