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Sequential logic circuit gold codes for electronics and communication technologies.

Aakanksha Devrari1, Adesh Kumar1, Piyush Kuchhal1

  • 1Department of Electrical & Electronics Engineering, School of Advanced Engineering, UPES, Dehradun, India.

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|February 21, 2024
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Summary
This summary is machine-generated.

This study designed and simulated a Linear Feedback Shift Register (LFSR)-based Gold code generator chip for high-frequency applications. The FPGA synthesis confirmed its viability for fast-switching wireless and optical systems.

Keywords:
Communication technologyFPGA synthesisGold Codes Hardware Chip using LFSRSeeding LFSRXilinx ISIM

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Area of Science:

  • Digital Signal Processing
  • Telecommunications Engineering
  • VLSI Design

Background:

  • Linear Feedback Shift Registers (LFSRs) and Gold codes are fundamental in modern communication systems like GPS and CDMA.
  • Their orthogonal sequences are crucial for efficient channel utilization and interference mitigation.

Purpose of the Study:

  • To design and simulate an LFSR-based Gold code generator chip.
  • To synthesize the design onto a Virtex-5 Field Programmable Gate Array (FPGA).
  • To evaluate its performance for high-frequency applications.

Main Methods:

  • Utilized Xilinx ISE 14.7 software for chip design and simulation.
  • Employed logic synthesis targeting a Virtex-5 FPGA.
  • Verified functionality with a 10-bit LFSR seed sequence and analyzed switching behavior.

Main Results:

  • Successfully designed and simulated a 1023-bit Gold code generator.
  • Achieved a frequency support of 310 MHz with a 9.285 ns delay.
  • Demonstrated the scalability of the design for future extensions.

Conclusions:

  • The LFSR-based Gold code generator chip is suitable for fast-switching optical and wireless systems.
  • The design's behavior is dependent on LFSR parameters like sequence length and cross-correlation.
  • The scalable architecture offers potential for advanced communication applications.