【摘 要】
:
The conventional Duffing oscillator weak signal detection method,which is based on a strong reference signal,has inherent deficiencies.To address these issues,t
【机 构】
:
Science and Technology on Electromechanical Dynamic Control Laboratory, School of Mechatronical Engi
论文部分内容阅读
The conventional Duffing oscillator weak signal detection method,which is based on a strong reference signal,has inherent deficiencies.To address these issues,the characteristics of the Duffing oscillator’s phase trajectory in a small-scale periodic state are analyzed by introducing the theory of stopping oscillation system.Based on this approach,a novel Duffing oscillator weak wide-band signal detection method is proposed.In this novel method,the reference signal is discarded,and the to-be-detected signal is directly used as a driving force.By calculating the cosine function of a phase space angle,a single Duffing oscillator can be used for weak wide-band signal detection instead of an array of uncoupled Duffing oscillators.Simulation results indicate that,compared with the conventional Duffing oscillator detection method,this approach performs better in frequency detection intervals,and reduces the signal-to-noise ratio detection threshold,while improving the real-time performance of the system.
其他文献
体育是学校教育的重要组成部分,是推进基础教育改革和素质教育的重要内容,在提高国民素质方面有不可替代的作用.体育游戏教学适合小学生的生理特点,能够激起小学生的运动兴趣
In this paper,we study soliton-cnoidal wave solutions for the reduced Maxwell-Bloch equations.The truncated Painlevé analysis is utilized to generate a consist
体育教学中如何对学生进行思想品德教育是体育教师在新形势下不断探讨的一个重要内容.根据我多年的教学实践,就以下几个方面与同行们共同探讨.
Very recently,experimental evidence showed that the hydrogen is retained in dithiol-terminated single-molecule junction under the widely adopted preparation con
针对l1范数下奇异值分解的l1-SVD稀疏信号重建的波达方向估计方法存在求解量的稀疏性较差且空间谱中存在较多的伪峰,不能准确估计波达方向的问题,对接收信号矩阵进行预处理,
The optimization of high power terahertz monolithic integrated circuit (TMIC) is systemically studied based on the physical model of the Schottky barrier varact
CO2 laser rapid ablation mitigation (RAM) of fused silica has been used in high-power laser systems owing to its advantages of high efficiency, and ease of impl
We design a hybrid integrated chaotic semiconductor laser with short-cavity optical feedback.It can be assembled in a commercial butterfly shell with just three
太原电视台台小志气大,他们大胆探索独具特色的电视传播,坚持走“三为主”(即以新闻节目为主,以自办节目为主,以国内节目为主)的道路;他们坚持社会主义新闻的党性原则,继承和