Recent content by anarachy

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    Reflection and transmission of signal

    Could you may be explain a little further with an example. Or refer a paper which has a table for reflection and transmission coefficients. Thanks
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    Reflection and transmission of signal

    How do I determine what percentage of a signal is reflected and what percentage goes through a wall. I know that I am over simplifying things, but for the purpose of my project I need a simple answer to this problem. What parameters are needed for the solution and how do we calculate this...
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    Relation between dB loss and percentage loss

    I want to know generally what the relation between dB loss and percentage loss is. If I want to know what percentage of a signals strength is lost knowing what its dB loss is, how would I accomplish that. Thanks.
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    Properties of auto-correlation functions

    Homework Statement Determine which, if any, of the following functions have the properties of auto-correlation functions. Justify your determination. http://rndpakistan.com/projects/hswhs/images/ques.jpg Homework Equations [PLAIN][PLAIN]http://rndpakistan.com/projects/hswhs/images/autop.jpg...
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    Digital Communications: Reconstructing a 6kHz Speech Signal

    Homework Statement Consider a speech signal with a maximum frequency of 6kHz. It is sampled at 10kHz and stored. Suggest a scheme to reconstruct the toll-quality speech signal as close to the original signal as possible. Homework Equations The Attempt at a Solution
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    Difference between light scattering and radiowave scattering.

    I just need to know how to calculate the scattering. What parameters are needed to calculate. I am using a light model to graphically show radio wave propagation.
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    Difference between light scattering and radiowave scattering.

    Can you give me an example on how to calculate scattering for these 2, 1- Light on concrete wall. 2- 2.4Ghz RF on concrete wall. The comparison would help me understand much better. Thanks.
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    Difference between light scattering and radiowave scattering.

    Is there a difference between light scattering and radio wave scattering or do they operate on the same basic principles?
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    Need refractive index for Radio wave propagation model

    Thanks a lot.
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    Need refractive index for Radio wave propagation model

    Can you recommend a source for this data, I can't seem to find any focused material on the web.
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    Need refractive index for Radio wave propagation model

    How much does refraction effect say a 2.4ghz wifi router in an indoor environment through concrete walls?
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    Need refractive index for Radio wave propagation model

    I am modeling an indoor based propagation model. I am simulating a light to show radio wave propagation through ray tracing techniques.As light and radio wave operate at different frequencies , I want to translate properties like refraction index for light to radio wave. Thanks.
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    Need refractive index for Radio wave propagation model

    I am modelling a radio wave propagation simulator for a Wifi at 2.4 Ghz. I know that the refracted index of glass for light is around 1.5, how do I translate this to a 2.4 Ghz radio wave. And what about other materials, such as concrete, brick wall etc. Thanks.