Journal of Radio Electronics. eISSN 1684-1719. 2025. ¹10
Full text in Russian (pdf)
DOI: https://doi.org/10.30898/1684-1719.2025.10.13
TRANSMISSION OF BINARY MESSAGES
BY ORTHOGONALIZED SIGNALS BASED ON
THE HADAMARD MATRIX WITH PULSE INTERFERENCE
V.A. Vershinin
The paper was received July 20, 2025.
Abstract. Frequency efficiency and noise immunity are the most important parameters of binary message transmission. The immunity of binary message transmission to pulse interference can be increased by organizing simultaneous (parallel) transmission of message elements by orthogonal signal functions. The article analyzes the transmission of binary messages directly by signal functions obtained by orthogonalization of overlapping narrowband signals and transmission by signal functions formed using the Hadamard matrix. The formation of the transmitted signal and processing of the received signal are considered. The immunity of transmission to pulse interference is estimated using modeling. Transmission using the Hadamard matrix has better noise immunity to pulse interference. This is due to a more uniform distribution of the envelopes of signal functions in time.
Key words: narrowband signals, impulse noise, orthogonalization, Hadamard matrix, complex envelope, frequency efficiency, crest factor.
Corresponding author: Vershinin Vladimir Aleksandrovich, vershinin-vladimir@yandex.ru
References
1. Vershinin V.A. Simulation of the Reception of Overlapping Signals Using a Whitewashing Filter and the Viterbi Algorithm // Telecom IT. 2022. Vol. 10. Iss. 4. pp. 59–68. https://doi.org/10.31854/2307 1303-2022-10-4-59-68
2. Vershinin V.A. Transmission of binary messages by orthogonalized partially overlapped signals // Journal of Radio Electronics. – 2024. – ¹. 10. https://doi.org/10.30898/1684-1719.2024.10.9 (In Russian)
For citation:
Vershinin V.A. Transmission of binary messages by orthogonalized signals based on the Hadamard matrix with pulse interference // Journal of Radio Electronics. – 2025. – ¹. 10. https://doi.org/10.30898/1684-1719.2025.10.13 (In Russian)