研究目的
To design a FIR digital filter based on FPGA that can assure arbitrary amplitude-frequency characteristic, simplify the circuit, reduce system volume, increase reliability, and lower development cost.
研究成果
The FIR filter designed based on FPGA simplifies the circuit, reduces system volume, increases reliability, and lowers development costs compared to traditional methods. Simulation using tools like Quartus II helps verify correctness before implementation, reducing experimental costs.
研究不足
The paper does not explicitly mention specific limitations, but potential constraints could include the reliance on specific hardware (Altera FPGA) and software tools, which may limit generalizability, and the complexity of VHDL programming for inexperienced developers.
1：Experimental Design and Method Selection:
The design uses FPGA for digital signal processing, specifically implementing a FIR filter with VHDL. The System Generator for FPGA is used for simulation to verify the design before hardware implementation.
2：Sample Selection and Data Sources:
Not specified in the paper.
3：List of Experimental Equipment and Materials:
FPGA hardware from Altera, AD (Analog-to-Digital) and DA (Digital-to-Analog) converters, and simulation software like Quartus Prime.
4：Experimental Procedures and Operational Workflow:
The process involves designing the filter using VHDL, simulating it with System Generator or Quartus II to test correctness, and then implementing it on FPGA hardware with AD/DA circuits for signal conversion.
5：Data Analysis Methods:
Simulation waveforms are used to analyze the behavior and response of the designed circuit.
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