On the "Digital Signal Processing" Teaching

[Papers Paper Keywords] Digital Signal Processing Experiment bilingual multimedia teaching
[Paper Abstract] <<Digital Signal Processing>> is a professional electronic information one of the important basic course. Based on the teaching, teaching, bilingual education teaching and research in three areas of pure theory to break the traditional teaching methods in ensuring the quality of the premise of teaching the students to improve skills and foreign language proficiency test.

0 Introduction
<<Digital Signal Processing>> is the electronic information professional's an important basic course. It is a multi-course of interconnected bridge, realized from theory to practice each transition for the students the theoretical analysis and comprehensive ability a very important role. With the ever-changing electronic technology and the rapid development of computer technology, digital signal processing One of the new theories and new technologies emerging, it is more and more prominent position and role. Our teaching is still widely used Man Tangguan teaching philosophy and methods of transport, with world-class research university teaching philosophy and methods, there is a big gap. how educational reform, it features high-tech digital age is a subject worth exploring.

1 Multimedia
Since <<Digital Signal Processing>> more abstract curriculum theory, concepts, formulas are more traditional means and methods of teaching the teachers taught in the course content on the podium, the main discussion of the derivation of algorithms and theory; students learn in the classroom lectures and , learning activities largely rely on detection test. multimedia teaching to improve the traditional teaching mode, the illustrations, audio and video with the whole, of the abstract to the concrete ways to optimize the whole process of teaching and practice.

In order to enhance the interaction of teaching, classroom teachers in the classroom while using the MATLAB graphical presentation, while on the blackboard to explain the formula is derived, and to encourage students to focus on classroom learning to understand concepts and ideas on solving the problem. So that students accepted boring theoretical knowledge, you can see the corresponding point of the validation of knowledge presentation, so that teaching is more intuitive, vivid, and compact. usually difficult to complete writing assignments, students use MATLAB software to complete and deepen the understanding of the knowledge enhance interest in learning.

In order to ensure good teaching hours and the effects of teaching to be prioritized, appropriate levels of detail. Such as the explanation of the FFT algorithm, the base 2-DIT-FFT and the base 2-DIF-FFT algorithm has a symmetric relation, so the former can be explained in detail algorithm, while the control algorithm of a brief description of the latter principle, no further details of the formula derived; another example, the content of IIR filter design, the Butterworth low-pass filters and several other similar filter in terms of design principles , so you can Butterworth low-pass filter, for example, derived in detail and explain the design process, and for a brief description of several other filters can be given to concluding the design process. This can save a lot of teaching hours, while can achieve focused, result of replication will help students grasp and understand the content.

Teachers to the classroom-based course content, the general level of understanding and acceptance of students. Student self learning course content should not only reflect the curriculum requirements, taking into account different levels and based on student learning, students learn according to their speed and understanding, grasp of select learning content, learning sequence. using multi-media teaching, teachers from the traditional teaching into preparing for the students, design resources and provide personalized help. At the same time, to develop learning, study summary, reflective learning, supervision and evaluation of online Q & A, etc. strategies to stimulate student interest in learning to achieve teaching objectives.

2 Experiment
In the past, the teaching model, the experimental teaching requires only that students understand the application of the knowledge. In recent years, advanced signal processing teaching model requires experimental teaching to a new height, which assisted with the experimental demonstration of the importance of students understanding of course concepts, so that students understand the application of knowledge, to guide students in the experiment from passive learning to active learning. To this end, teaching also need to change accordingly: MATLAB-based demonstrations, a significant increase in digital signal processing application example, the experiment Teaching students to truly become an important part of practical ability.

Characteristics of the course and for teaching purposes, the experimental teaching of digital signal processing digital signal processing theory is divided into basic experiment, the digital filter design experiments and the realization of digital signal processing and application. The teaching content and methods of the theory of abstract system into the simulation software, such as <<Digital Signal Processing>> in the time domain and frequency domain sampling theorem, discrete Fourier transform, spectral analysis, fast Fourier transform, filter design and other content, students can through online virtual laboratory to verify These signal processing theory and methods to enhance the understanding of this knowledge and mastery.

Requires students to practice with the First Report into the laboratory, and by way of random questions to understand the extent of students prep. To take such an approach also improves the utilization of laboratory equipment and experimental efficiency of the classroom. And then take the assessment test scores to the experimental site, all aspects of the experiment incorporated elements of the assessment, scoring a way to live, so that experimental results can basically reflect the true level of students to experiment, to maximize the experimental results to ensure objective and fair. transfected affixed to the Research Papers Download http://www.hi138.com teachers prepared before the experiment, carefully designed the experiment content, heuristic, discussion of teaching carried out experiments, students focus on rigorous scientific attitude, team spirit of mutual cooperation and the courage to open up the innovation. Through practice, students were positive, both students integrate theory with practice and digital signal processing capabilities, but also improves the actual working capacity and innovation.

3 Bilingual
With the rapid development of signal processing technology, the international <<Digital Signal Processing>> course content, teaching methods and teaching methods have undergone tremendous changes. China is not the majority of Chinese teaching materials to reflect these changes in a timely manner. In many aspects of teaching and abroad there is a big gap compared to textbooks. In order to make the teaching content and the international advanced level, the introduction of the course in English language materials, bilingual teaching.

Bilingual education in foreign languages ​​must take into account the level of the students, the use of appropriate teaching model. In selecting materials, we use an English textbook, an electronic version of the Chinese reference materials and a Chinese. English materials as the main source of lectures, choices are the introduction of the internationally renowned Tsinghua University Press, the original material-AV. Oppenheim (AV Oppenheim) waiting for the < >. Chinese reference books in content coverage, beyond the course content, selected by Tsinghua University Press published < >. The book works through the specific example of the MATLAB tools for digital signal processing applications and the basics of organically combined, brought to the user to learn a great help, highly appropriate given each chapter, practical of exercises, user-friendly learning and mastery of knowledge.

Opening lecture course in English (an overview of the contents of this lecture), and then to explain the importance of professional vocabulary; the main content is divided into several modules, in order to explain the mainly Chinese, with English terms, the final summary in Chinese. On the medium difficulty the following English subject homework and exams in English, answer in English, with Chinese answer is difficult.

But part of teaching students to express can not read English textbooks, more than words, efficiency is low; and some students reflected digital signal processing have been difficult to study, teaching a foreign language is even harder. Classroom teachers for students after a careful analysis of the problems that : First, students lack self-confidence, fear teaching specialized courses in English difficult to understand; Second, students do not have appropriate learning methods and techniques. To do this, classroom teachers encourage students to take active measures to build confidence, while learning methods to guide and help and has repeatedly stressed that bilingual education is to train students in English, knowledge of effective means of learning so that students truly bilingual education from ideological importance. Through these efforts, most students are now open for the original English teaching materials.

Practice shows that bilingual education is only the use of appropriate teaching, can ensure a better learning results. Students better understand both the professional course content, and also enhance the ability to read English literature, while overcoming the use of English for academic exchanges fear, and gradually increase the English proficiency.

4 Conclusion
<<Digital Signal Processing>> Course Teaching Practice shows that: This course is pure theory to break the traditional teaching methods, by means of simulation technology and multimedia to enhance the students understanding of theoretical knowledge and practical application of perceptual knowledge, stimulate the students innovative thinking and a strong desire to practice. the use of advanced experimental teaching and the strengthening of the basic concepts of digital signal processing, basic definitions, basic principles of deep understanding and a vivid perceptual image, so closely integrated theory and practice. And will not stay in the back of the formula, do exercises, test score level. bilingual teaching English to students in the practical application was significantly improved; familiar with the terminology, oral and written English; understanding of how international multimedia tools academic exchanges. <<Digital Signal Processing>> teaching research development needs of the times, is the implementation of quality education and innovative education. Links http://www.hi138.com Research Papers Download