A New Algorithm For Synchronous Continuous wave interference Cancellation In Loran Navigation System

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BAYAT M.; MADANI M.H.

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Paper Information

Journal: JOURNAL OF ELECTRONIC AND CYBER DEFENCE Year:2016 | Volume:4 | Issue:2 (14) Page(s): 23-38

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Title

A New Algorithm For Synchronous Continuous wave interference Cancellation In Loran Navigation System

Author(s)

BAYAT M. | MADANI M.H. | Issue Writer Certificate

Keywords

Loran CQ1

SIRQ1

CWIQ1

GRIQ1

TOAQ1

TDOAQ1

Abstract

Recently, the use of the loran system in navigation has gained much attention respect to its jamming security and possibility of improving the performance using hardware and new algorithms. Various sources of the error, continuous wave interference as the main one, cause error in the phase tracing and consequently cause error in measuring the time of arrival which finally result in the accuracy of navigation. In this paper, using the structure of loran pulses in the time domain, a new algorithm is proposed in order to removing the continuous wave interference. This algorithm has low complexity, has better performance than the conventional scenario, and its implementation causes improving of performance and accuracy of navigation. The simulation results show that the performance of the proposed algorithm is approximately independent of SIR of the received signal, and the limiter factor is the SNR of the received signal only. The proposed algorithm for measuring the time of arrival (TOA) result in removing the effect of coherent interference (improvement compared to the other conventional scenario averaging and phase decoding with coefficient 1023). This noticeable improvement is provided in the cost of decreasing the received SIR caused by the non-coherent continuous wave interference with maximum value 3 dB which can be simply removed by use of a band pass filter.

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APA: Copy

BAYAT, M., & MADANI, M.H.. (2016). A New Algorithm For Synchronous Continuous wave interference Cancellation In Loran Navigation System. JOURNAL OF ELECTRONIC AND CYBER DEFENCE, 4(2 (14) ), 23-38. SID. https://sid.ir/paper/243190/en

Vancouver: Copy

BAYAT M., MADANI M.H.. A New Algorithm For Synchronous Continuous wave interference Cancellation In Loran Navigation System. JOURNAL OF ELECTRONIC AND CYBER DEFENCE[Internet]. 2016;4(2 (14) ):23-38. Available from: https://sid.ir/paper/243190/en

IEEE: Copy

M. BAYAT, and M.H. MADANI, “A New Algorithm For Synchronous Continuous wave interference Cancellation In Loran Navigation System,” JOURNAL OF ELECTRONIC AND CYBER DEFENCE, vol. 4, no. 2 (14) , pp. 23–38, 2016, [Online]. Available: https://sid.ir/paper/243190/en

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