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Type: Posts; User: liuyying

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  1. Closed: Help, urgent!! Blurred on eigenfaces calculation...

    Hi, i am using PCA on doing the face recognition project. To using PCA algorithm as my work on training part, i have to find the eigenfaces matrix. When there are 10 people, each of them have 5...
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    Closed: Re: matlab problem in image filtering

    i use Matlab. yaya...
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    Closed: matlab problem in image filtering

    For image filtering, after using gaussian or median filter with large numbers, the outside line of the image will become black, y will it happen??
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    Closed: DSP question. help!!!

    DSP question. help!!!

    i met some problems here. hopefully i can get the solution here.

    1) A 2 th order IIR system is defined as
    y(n)-0.866 y(n −1) + 0.25y(n − 2) = x(n) + 2x(n −1)...
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    Closed: DSP question. help!!!

    i met some problems here. hopefully i can get the solution here.

    1) A 2 th order IIR system is defined as
    y(n)-0.866 y(n −1) + 0.25y(n − 2) = x(n) + 2x(n −1) + x(n − 2)
    a) Calculate the transfer...
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    Closed: what algorithm can be used????

    if i want to do the face recognition, what algorithm can be used????
    Any suggestions from others??
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    1,317

    Closed: Re: Self introduction session

    hi, nice to meet you too....
  8. Closed: c programming and verilog in building 5 tap FIR filter with 8-bit inputs???

    hi...
    have anybody knows the c programming or verilog in building 5 tap FIR filter with 8-bit inputs???

    ---------- Post added at 22:36 ---------- Previous post was at 22:16 ----------

    in...
  9. Closed: how the parameters affect the threshold voltage, leakage current and drain current???

    how the parameters affect the threshold voltage, leakage current and drain current???
    I mean: e.g. when increase the doping concentration, how the charge inside the transistor changes its threshold...
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    Closed: Self introduction session

    Yo... My name is Ying, come from malaysia......
    i like electronic circuit very much..................:lol:
    u???:?:
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    Closed: Need help in NMOS or PMOS fabrication??

    What is the steps for designning NMOS or PMOS in fabrication????
    I means how to determine the parameters like leakage current, threshold voltage......
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    Closed: Re: How to define port in LPC2148???

    Ehm..... still do not have idea on defining the port in lpc..
    Can give me some example???
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    Closed: Re: How to define port in LPC2148???

    u mean which language i use??
    i use c programming...
    As i know, i can define pic directly like PORTA=CAR. Is i define lpc as the same way??
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    Closed: How to define port in LPC2148???

    How to define port in LPC2148???
  15. Closed: What parameters will affect the threshold voltage???

    What parameters will affect the threshold voltage???
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    Closed: what is the short channel effect??

    what is the short channel effect??
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    Closed: How the TTL inverter works???

    How the TTL inverter works???
  18. Closed: How does these factors affect the MOSFET performance???

    1.How does the lateral and vertical dimensions affect the MOSFET performance??
    2.How does the threshold voltage and the supply voltage affect the MOSFET performance??
    3.How does the doping levels...
  19. Closed: How the fabrication process steps works in manufacturing an IC??

    How the fabrication process steps works in manufacturing an IC??
  20. Closed: Can i use LPC 2148 to control ST7565R LCD???

    Can i use LPC 2148 to control ST7565R LCD???
  21. Closed: Re: What is the differences between programming C, C++ and C#???

    Ya, i am newbie in programming...

    Another question is what is the meaning by Microsoft language??
  22. Closed: Re: What is the differences between programming C, C++ and C#???

    What is the meaning of classes?? :roll:
  23. Closed: What is the differences between programming C, C++ and C#???

    What is the differences between programming C, C++ and C#???
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    Closed: Re: how to design a signed multiplier???

    if for 4X4 multiplier??
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    Closed: how to design a signed multiplier???

    how to design a signed multiplier???
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