FIELD: radio engineering and communications.
SUBSTANCE: invention relates to the field of radio communication and can find application in systems using broadband signals. Method for decoding information signal elements encoded by Walsh sequences represented by rows of the Hadamard matrix of order n (sequences ), consisting in the fact that on the receiving side the base of sequences n is represented in the form n=n1+n2+…+ng of bits and decode an unknown sequence
begins with the sequence of
and sequences
, derived from ƒ=n1 bits of corresponding sequences
and
, and, after determining the number P1 of sequence
, its correctness is established by calculating the correlation function (CF) of the sequence
with sequence
and, in the case of exceeding the obtained value of the CF of a given threshold, number P1 is considered to be computed correctly and decoding is considered to be performed, otherwise, decoding an unknown sequence
is carried out by means of a sequence of
and sequences
derived from ƒ=n1+n2 bits of corresponding sequences
and
with the implementation of the above actions, in the event that the CF has not exceeded the threshold, unknown sequence decoding
after the next increase in the number of ƒ bit sequences
and
, decoding the sequence
by the definition of the number Pƒ and its correctness until the correct value of the number Pƒ at ƒ=n.
EFFECT: faster decoding.
1 cl, 1 tbl
Title | Year | Author | Number |
---|---|---|---|
DEVICE FOR FINDING NOISE-LIKE SIGNAL | 1978 |
|
SU1840096A1 |
DEVICE FOR GENERATING, TRANSMITTING AND RECEIVING FREQUENCY-TIME MATRIX OF NOISE-LIKE SIGNAL | 2013 |
|
RU2544735C2 |
METHOD OF SEPARATING SPEECH AND PAUSES BY ANALYZING VALUES OF INTERFERENCE CORRELATION FUNCTION AND SIGNAL AND INTERFERENCE MIXTURE | 2018 |
|
RU2691603C1 |
DEVICE FOR SYNCHRONIZATION OF M-SERIES | 1983 |
|
SU1840196A1 |
DEVICE FOR SYNCHRONIZATION OF M-SERIES | 1985 |
|
SU1840079A1 |
DEVICE FOR DECODING DISCRETE SIGNALS PROPAGATING IN MULTIBEAM CHANNEL | 2014 |
|
RU2560102C2 |
METHOD FOR TRANSFERRING DISCONTINUOUS INFORMATION IN RADIO LINE WITH HOPPING WORKING FREQUENCY | 2005 |
|
RU2290758C1 |
DEVICE FOR SEARCHING NOISE-LIKE SIGNALS | 0 |
|
SU1202058A1 |
BROADBAND SIGNAL SEARCHING DEVICE | 1981 |
|
SU1840149A1 |
METHOD FOR TRANSMITTING AND RECEIVING DISCONTINUOUS INFORMATION WITH PSEUDO-RANDOM SIGNALS | 2005 |
|
RU2284666C1 |
Authors
Dates
2018-07-06—Published
2017-06-22—Filed