2024年3月27日下午，受邀于生物电路与系统实验室（以下简称BiCASL实验室），Lim Yong Ching（林永青）教授，在上海交通大学电子信息与电气工程学院微纳电子学系进行了题为“Scaling the Sidelobe Magnitude of Fixed Classical Beamformer & Cross Coupled CMOS Transconductor Design”的精彩学术报告。主讲人深入浅出地讲解了复杂的概念，让在场的听众受益匪浅。听众们全神贯注地聆听，时而点头赞同，时而陷入沉思，讲座结束后，大家纷纷表示收获颇丰，意犹未尽，这场讲座无疑是一场知识的盛宴，让人回味无穷！此次讲座由BiCASL实验室的副教授李永福主持，吸引了30余位微纳电子学系和电子系的师生前来聆听。

本次报告包括两个部分。第一部分的主题为“Scaling the Sidelobe Magnitude of Fixed Classical Beamformer”，内容源自演讲者发表在2021年IEEE信号处理快报上的一篇论文。主讲者介绍了一种调整任何波束形成器（包括固定不可调波束成形器）的峰值旁瓣幅度的方法。该方法涉及以第一种切比雪夫多项式的形式用变量 x 表示数组因子，然后缩放 x 轴。第一部分结束后黄家杰同学和周婷同学对林老师进行了提问。

第二部分的主题为“Cross Coupled CMOS Transconductor Design”，内容源自主讲者发表在2000年2月号《微电子杂志》上的论文，在本次演讲中，介绍了一种在最小化硅面积的同时提高跨导线性度的方法。主讲者从最基本的差分电路入手，基于公式推导，带领听众们一步步了解提高电路线性度的方法。

这次讲座充满了深度和广度，内容丰富，引人入胜。演讲者还鼓励听众提问，积极互动，使得整个讲座氛围活跃，充满活力。

最后，李永福老师向Lim Yong Ching教授赠予礼物以感谢他为我们带来的精彩纷呈的讲座。

林永青老师简介：

图片来自IEEE官网

Affiliation

DASP Pte Ltd, Singapore

Publication Topics

Hamming Window,Chebyshev Polynomials,Window Function,Window Type,Biquadratic,Faster Convergence,Sidelobe Magnitude,Acceptable Tolerability,Calculation Of Derivatives,Common Part,Complex Roots,Computational Complexity,Considerable Reduction,Digital Filter,Directional Filter,Extensive Simulations,Filter Order,Filter Pairs,Filter Response,Finite Impulse Response Filter,Formal Series,Fourier Series,Frequency Response,Frequency Response Function,Hyperbolic Tangent

Biography

Yong Ching Lim (S'79–M'82–SM'92–F'00) received the A.C.G.I. and B.Sc. degrees in 1977 and the D.I.C. and Ph.D. degrees in 1980, all in electrical engineering, from Imperial College, London, U.K.,Since 2003, he has been with the School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, where he is currently a professor. From 1980 to 1982, he was a National Research Council Research Associate in the Naval Postgraduate School, Monterey, CA, USA. From 1982 to 2003, he was with the Department of Electrical Engineering, National University of Singapore. His research interests include digital signal processing and VLSI circuits and systems design.,Dr. Lim was a recipient of the 1996 IEEE Circuits and Systems Society's Guillemin-Cauer Best Paper Award, the 1990 IREE (Australia) Norman Hayes Memorial Best Paper Award, 1977 IEE (U.K.) Prize and the 1974–1977 Siemens Memorial (Imperial College) Award. He served as a lecturer for the IEEE Circuits and Systems Society under the distinguished lecturer program from 2001 to 2002 and as an Associate Editor for the IEEE Transactions on Circuits and Systems from 1991 to 1993 and from 1999 to 2001. He has also served as an Associate Editor for Circuits, Systems, and Signal Processing from 1993 to 2000. He served as the Chairman of the DSP Technical Committee of the IEEE Circuits and Systems Society from 1998 to 2000. He served in the Technical Program Committee's DSP Track as the Chairman in IEEE ISCAS'97 and IEEE ISCAS'00 and as a Co-chairman in IEEE ISCAS'99. He was the General Chairman for IEEE APCCAS 2006, a Co-General Chairman for IEEE ISCAS 2009, ICGCS 2010, and DSP 2014.