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预测威盛电子笔试题
作者：佚名 来源：不详 发布时间：2007-4-27 8:38:00
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若能侥幸言中几题,对大家有所启迪,实乃吾之大荣幸也!
Competition Examination for Communication Engineer
1. Briefly describe ISO OSI reference model.
2. Briefly describe sliding window protocol.
3. Briefly describe CSMA/CA protocol.
4. Briefly describe how bit stuffing works and why we need bit stuffing.
5. Describe how error is been handled in protocol layer.
6. What is the difference between static variable and auto variable in C lan
guag
e?
7. Describe preemptive kernel.
8. Describe interrupt latency.
9. Write a simple program to insert an element into a double link list.
10. Do you know SDL or ASN.1?
1. Describe transmission media available in today''s technology.
2. Briefly describe AM, FM and PM.
3. Briefly describe TDMA, FDMA and CDMA.
4. Describe how error is been handled in physical channel.
5. What is Nyquist sampling theorem?
6. Briefly describe FIR and IIR.
7. Briefly describe concept of equalizer.
8. Briefly describe MAC instruction in DSP.
9. What is echo cancellation? And how echo happen?
10. What is multi-path effect in wireless communication?
1. What are the systems you designed before?
2. What are the design tools you used before?
3. What kind of the debugging methodology you will consider when you design
a sy
stem?
4. Do you ever design a mixed-signal and/or RF system before?
5. Are you familiar with ARM or DSP or FPGA or ASIC?
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