Legendre and Polyphase Sidel’nikov Sequence for Applications in Space Communication
Cheruku Ravikumar1, K. L. Sudha2
1Cheruku Ravikumar, Department of Electronics & Communication, Dayanand Sagar College of Engineering, VTU, Banglore, India.
2Dr. K. L. Sudha, Department of Electronics & Communication, Dayanand Sagar College of Engineering, VTU, Banglore, India.
Manuscript received on July 19, 2014. | Revised Manuscript received on July 20, 2014. | Manuscript published on July 25, 2014. | PP:25-28 | Volume-2 Issue-9, July 2014. | Retrieval Number: I0784072914/2014©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Pseudo Random Noise (PRN) codes are essential part in space communication. A pseudo random noise binary sequence is a semi-random sequence in the sense that it appears random within the sequence length, fulfilling the needs of randomness. The objective of the paper is to generate different types of PN sequences i.e. Legendre sequence, Weil sequence, Sidel’nikov sequence and polyphase Sidel’nikov sequence which are used for space communication applications and compare their randomness characteristics. Legendre sequences are generated based on the ON-THE-FLY code generation method. Weil sequence is obtained by performing EX-OR of the Legendre sequence and a circular shift of Legendre sequence. In this paper, the different types of PN sequences are used to construct the spread spectrum communication system with BPSK modulation.
Keywords: Legendre sequence, Weil sequence, Sidel’nikov sequence, Finite field.