An online emission spectral tomography system with digital signal processor

Area of Science:

• Physics
• Engineering
• Computational Science

Background:

• Emission spectral tomography (EST) is crucial for analyzing 3D fluid field distributions (e.g., burning gas, plasma).
• EST data acquisition generates large datasets, making calculations computationally intensive and time-consuming.
• Accelerating EST calculations is vital for its practical application.

Purpose of the Study:

• To address the computational bottleneck in emission spectral tomography.
• To propose and evaluate a hardware-based acceleration method for EST calculations.

Main Methods:

• Developed a hardware implementation using a digital signal processor (DSP) DM642 within an EST test system.
• Executed the EST algorithm directly on the DSP.
• Transmitted calculation results to a main computer via User Datagram Protocol (UDP).

Main Results:

• The DSP-based hardware implementation significantly decreased EST calculation time.
• Achieved substantial performance improvement compared to traditional VC++ software implementations.
• Demonstrated the feasibility of hardware acceleration for complex EST computations.

Conclusions:

• Hardware acceleration using DSPs offers a viable solution to the time-consuming nature of EST.
• This approach enhances the practicality and efficiency of EST for analyzing complex fluid fields.
• The proposed method provides a significant speedup for emission spectral tomography analysis.