Design and Implementation of Radar IF Signal Processing Board Based on PPC+DSP+FPGA Architecture

DOI: https://doi.org/10.62517/jes.202602227

Author(s)

Yuanhai Wang

Affiliation(s)

Prophet Electronic Technology Co., Ltd., Shanghai, China

Abstract

Next‑generation radar systems impose stringent requirements on signal processing units, including high real‑time performance, high sampling accuracy, high‑speed data exchange, and strong environmental adaptability. To address these challenges, this paper designs and implements an integrated radar processing board based on a heterogeneous collaborative processing architecture consisting of PPC, DSP, and FPGA. The board integrates multiple functions such as parallel multi‑channel IF signal acquisition, high‑precision waveform generation, high‑speed optical fiber communication, remote program loading, and system health management. Systematic optimizations are carried out at three levels: hardware link, logic timing, and software architecture, the module strictly complies with military equipment design specifications and has passed environmental adaptability verifications including electromagnetic compatibility, high/low temperature operation (–55 °C to +70 °C), vibration, and shock tests. It can be stably adapted to various complex combat scenarios such as airborne, shipborne, vehicle‑mounted, ground fixed stations, and electronic countermeasures. Measured results show that the ADC achieves an effective number of bits (ENOB) of 12.3 bits, the DAC phase noise is better than –105 dBc/Hz@1 kHz, and the data bandwidth between the FPGA and DSP via the SRIO interface reaches 20 Gbps. All specifications are better than the design expectations, fully meeting the multi‑task processing requirements of radar target detection, tracking, imaging, and electronic countermeasures. The work presented in this paper provides a high‑performance and highly reliable hardware processing platform for advanced radar systems, offering significant engineering application value and promising prospects for further adoption.

Keywords

Radar Integrated Processing Board; Heterogeneous Processing Architecture; PPC+DSP+FPGA; High-Speed Signal Acquisition; Optical Fiber Communication; Military Radar; Multi‑Scenario Adaptability

References

[1]Zhang X, Wang Q. Design of radar real-time signal processing system based on heterogeneous multi-core. Radar Science and Technology, 2022, 20(3): 245-251. [2]Li J J. Application research of high-speed ADC/DAC in radar signal processing. Application of Electronic Technique, 2021, 47(8): 132-136. [3]Wang J, Liu C. Design of high-speed data transmission system based on Kintex-7 FPGA. Microelectronics & Computer, 2023, 40(5): 78-83. [4]Wang L, Zhao Y. Research on multi-processor collaborative radar signal processing architecture. Modern Radar, 2023, 45(6): 55-59. [5]Huang M, Wu J. Design of embedded system based on P1010 processor. Microcontrollers & Embedded Systems, 2022, 22(11): 34-38. [6]Zhao W, Zhang G D. Design of broadband radar IF signal acquisition and processing system. Radar Science and Technology, 2022, 20(5): 410-415. [7]Chen M, Zhou M. Design of FPGA-DSP high-speed communication based on SRIO interface. Telecommunication Engineering, 2022, 62(9): 1021-1026. [8]Zhou M, Zhao Y. Electromagnetic compatibility design of radar signal processing board. Safety & Electromagnetic Compatibility, 2023(4): 56-60. [9]Liu J, Huang T. Application of embedded VxWorks operating system in radar system. Computer Engineering and Applications, 2023, 59(12): 230-235. [10]Zheng Q, Wang L. Design and implementation of high-reliability military electronic equipment. Application of Electronic Technique, 2023, 49(10): 145-149