基于DSP Builder的自适应线谱增强器设计

Design of Adaptive Line Enhancer Based on DSP Builder

采用自适应线谱增强器对舰船辐射噪声中的线谱进行增强,有助于实现对舰船辐射噪声中线谱成分的检测和提取。针对使用VHDL编写底层代码来实现自适应线谱增强器开发效率低等缺点,在Simulink中的DSP Bulider平台下,设计了自适应线谱增强器的模型,自动生成了符合FPGA要求的文件。并结合多种EDA工具,对模型进行仿真、验证,使设计更加灵活与简便,提高了工程应用的效率。

Enhancing the line spetrum of ship-radiated noise by adaptive line enhancer is good to detect and extract line spectra. To solve the problem that adaptive line enhancer implemented by FPGA through bttom layer HDL coding has apoor development efficiency,a model of adaptive line enhancer is established by DSP Builder and files which can be used by FP- GAare generated automatically. Then the adaptive line enhancer is simulated by the simulation model,and the feasibility of the model is validated. It is easy and simple to design adaptive line enhancer by using this method.