Signal-to-noise Ratio Study on Pipelined Fast Fourier Transform Processor

Hassan, Siti Lailatul Mohd; Sulaiman, Nasri; Shariffudin, Shafinaz Sobihana; Yaakub, Tuan Norjihan Tuan

doi:10.11591/eei.v7i2.1167

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…Jamming is the main channel impairment in military applications. Jamming is a high-power signal generated at specific operating frequency or bandwidth to interrupt the received signal [1,2]. That will compel the radar to operate badly in the presence of threat, which is risky.…”

Section: Introductionmentioning

confidence: 99%

A novel fast time jamming analysis transmission selection technique for radar systems

Hussein

Mabrouk

Elsor

et al. 2021

IJECE

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The jamming analysis transmission selection (JATS) sub-system is used in radar systems to detect and avoid the jammed frequencies in the available operating bandwidth during signal transmission and reception. The available time to measure the desired frequency spectrum and select the non-jammed frequency for transmission is very limited. A novel fast time (FAT) technique that measures the channel spectrum, detects the jamming sub-band and selects the non-jammed frequency for radar system transmission in real time is proposed. A JATS sub-system has been designed, simulated, fabricated and implemented based on FAT technique to verify the idea. The novel FAT technique utilizes time-domain analysis instead of the well-known fast Fourier transform (FFT) used in conventional JATS sub-systems. Therefore, the proposed fast time jamming analysis transmission selection (FAT-JATS) sub-system outperforms other reported JATS sub-systems as it uses less FPGA resources, avoids time-delay occurred due to complex FFT calculations and enhances the real time operation. This makes the proposed technique an excellent candidate for JATS sub-systems.

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Section: Introductionmentioning

confidence: 99%

A novel fast time jamming analysis transmission selection technique for radar systems

Hussein

Mabrouk

Elsor

et al. 2021

IJECE

View full text Add to dashboard Cite

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“…Many methods play in frequency domain analysis, one of them is fast Fourier transform (FFT) [12]- [14]. FFT is used because easy implementation and fast computation [15]- [17]. Moreover, FFT can detect DC arc fault accurately.…”

Section: Introductionmentioning

confidence: 99%

Hardware implementation of series DC arc fault protection using fast Fourier transform

2021

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This paper proposes method of series direct current (DC) arc fault protection using low cost microcontroller. Series DC arc fault occurs when gap between conductor or wire flows a current. Series DC arc fault can cause fire hazard if do not detected and protected. However, Series DC arc fault is difficult to detected using conventional protection. To detect series DC arc fault accurately using fast Fourier transform (FFT). FFT is used to transform signal in time domain to frequency domain. Series DC arc fault has different characteristic compared by normal current in frequency domain. Therefore, the proposed algorithm for protection of series DC arc fault based on magnitudes of the current in frequency domain. Hardware system is implemented by 100 V DC power supply and DC arc fault generator. Test result is conducted experimentally under varying of load current such as 2 A, 2.5 A, 3 A, 3.5 A, 4 A and 5 A. Experimental testing results show that Series DC arc fault protection has time for trip of 0.48 s, 0.26 s, 1.04 s, 0.68 s, 0.44 s and 0.48, respectively. The fastest time for trip is 0.26 s with current of 2.5 A. Therefore, the proposed algorithm for series DC arc fault protection can operate to trip accurately and have the good performance.

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Lightweight Authentication Billing Enhancement Mechanism Based on the Fourier Fast Transform Algorithm

Zhou

Wang

2022

Mathematical Problems in Engineering

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In recent years, with the development and extensive application of Internet technology and computer technology, and under the role of the continuous expansion and enrollment expansion of colleges and universities, how to effectively solve the Internet problems faced by teachers and students in colleges and universities has gradually become an important problem that the university information management department should solve in time. In order to continuously improve the efficiency of Internet access in universities, the Internet authentication and billing system for universities proposed in this paper take J2EE as the development platform and combines RADIUS protocol and PPPoE protocol to provide users with diversified Internet billing methods and strategies. At the same time, based on the Fourier fast transform algorithm, the development environment for the Internet authentication and billing system for colleges and universities is deployed, and after the Internet authentication and billing system is implemented, from the functional point of view of the system, the main functional modules are designed and implemented, including the authentication management function. module, billing management function module. The experimental results have shown that the throughput of PPPoE access server in the campus network using the Fourier rapid transform algorithm for traffic load balancing delay is small and stable between 200 ms and 300 ms after the optimization, which provides a feasible solution to promote the healthy and harmonious development of the university campus network.

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Signal-to-noise Ratio Study on Pipelined Fast Fourier Transform Processor

Cited by 3 publications

References 6 publications

A novel fast time jamming analysis transmission selection technique for radar systems

A novel fast time jamming analysis transmission selection technique for radar systems

Hardware implementation of series DC arc fault protection using fast Fourier transform

Lightweight Authentication Billing Enhancement Mechanism Based on the Fourier Fast Transform Algorithm

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