计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2014年
9期
189-192
,共4页
线性预测分析%斜格法%反射系数%现场可编程门阵列
線性預測分析%斜格法%反射繫數%現場可編程門陣列
선성예측분석%사격법%반사계수%현장가편정문진렬
linear prediction analysis%lattice method%reflection coefficient%Field Programmable Gate Array(FPGA)
针对语音信号线性预测分析经典算法的缺陷，提出了线性预测分析的改进算法，分析其原理、运算步骤及求解方法。研究了算法的FPGA实现，采用Verilog HDL语言对算法完成建模，使用QuartusII进行综合编译，通过Modelsim进行仿真验证。实验结果表明，FPGA实现结构简单，消耗资源少，运算速度较软件实现大幅提高，稳定性与参数精度满足理论要求。
針對語音信號線性預測分析經典算法的缺陷，提齣瞭線性預測分析的改進算法，分析其原理、運算步驟及求解方法。研究瞭算法的FPGA實現，採用Verilog HDL語言對算法完成建模，使用QuartusII進行綜閤編譯，通過Modelsim進行倣真驗證。實驗結果錶明，FPGA實現結構簡單，消耗資源少，運算速度較軟件實現大幅提高，穩定性與參數精度滿足理論要求。
침대어음신호선성예측분석경전산법적결함，제출료선성예측분석적개진산법，분석기원리、운산보취급구해방법。연구료산법적FPGA실현，채용Verilog HDL어언대산법완성건모，사용QuartusII진행종합편역，통과Modelsim진행방진험증。실험결과표명，FPGA실현결구간단，소모자원소，운산속도교연건실현대폭제고，은정성여삼수정도만족이론요구。
Aiming at the shortcomings of the classical algorithm of linear prediction analysis of speech signal, an improved algorithm for linear prediction analysis is presented. The algorithm’s principle, operation steps and solving method are analyzed. This paper researches the algorithm’s implementation based on FPGA. The algorithm is implemented by Verilog HDL language. Quartus II and Modelsim are chosen for comprehensive compilation and simulation verification. The experi-mental results show that FPGA implementation has simple structure, low resource consumption, much higher operational speed than software’s implementation, and its stabilization and parameter precision can meet theoretic requirements.
