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Recent content by naspek

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    Reference Books to study MATLAB code for Dynamic Channel Assignment

    Hey there.. I'm looking for Reference Books to study MATLAB code for Dynamic Channel Assignment in cognitive radio network.. Could u guys please suggest to me good books for me to refer to.. Thanks in advance.. =)
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    Cognitive Radio Network

    Hey there.. I'm trying to set up a cognitive radio network for mobile system which will make use of the available spectrum of TV white space (UHF) using Dynamic Channel Assignment to distribute the the users to the available channel.. What should i consider to set up this kind of network...
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    DFT Circular Convolution

    Let say the circular convolution of two discrete-time signals x1[n] and x2[n] produces yet another discrete-time signal y[n] of the same length. How am I going to recover x2[n] from knowing x1[n] and y[n]? Thank you.
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    Need guide to design FIR bandpass filter using calculation or MATLAB

    hey there.. I really hope u guys can help me extracting the important element from the question below; A signal is sampled at the sampling rate of 10kHz. The signal has useful signal content between 1kHz and 2.4kHz, and distortion of not more than 1dB is required for this range. It is known...
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    [MATLAB] unit-ramp response for open loop transfer function

    Hey there.. I'm having problem on obtaining unit ramp input response. I've got no problem to find unit step response.. BUT, to find unit ramp response, i need unit ramp input response.. that's my problem.. should i use lsim function to get it? U can see the question in the attachment..
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    Class A Transistor Amplifier Analysis

    thank u for your help.. but.. both questions carry 20 marks.. so, is there anything more can be added?
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    Class A Transistor Amplifier Analysis

    i think u didn't answer my question there.. During DC biasing measurement, if CE changes from 0.1 µF to 1 µF, what happen to the readings in VE
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    Class A Transistor Amplifier Analysis

    thank u for your reply sir.. the circuit is shown below.. really hope u can help..
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    Class A Transistor Amplifier Analysis

    Hey there.. I've got couple of questions need to be answer.. i really got no idea to solve it.. 1) During DC biasing measurement, if CE changes from 0.1 µF to 1 µF, what happen to the readings in VE (assume CE is ideal capacitor, no parasitic resistance or inductance)? 2) The input and output...
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    [Moved] Multisim: Design tuned class A amp. (oscilloscope)

    hey there.. i'm trying to connect two channel oscilloscope as shown in figure 2.. but i can't connect it to the required node.. please guide me.. :?:
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    Amplitude and Phase Distortion Signal

    Find the output to each of the inputs given below. For which cases is the transmission distortionless? For the other cases, indicate what type of distorsion in imposed. (a) cos(48πt) + 5 cos(126πt) (b) cos(126πt) + 0.5 cos(170πt) (c) cos(126πt) + 3 cos(144πt) (d) cos(10πt) + 4cos(50πt) Solution...
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    Transmitter for Digital signal

    Hey there.. got question here.. i been searching around the net.. but still didn't get any answer for my question.. An analogue source produces an audio and video signals. Explain with a transmitter block diagram, how the two signals can be transmitted with other digital signals over a noisy...
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    Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS)

    why phase shift keying (PSK) is often used for DS-SS whereas frequency shift keying (FSK) is used for FH-SS?:!:
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    Double minimum Method (SWR measurement)

    Explain the advantages of Double minimum Method over SWR Meter in terms of SWR measurement. I just got one advantage.. for double minimum method, we can measure high and low SWR compared to SWR meter that can only measure low SWR. i just don't know, if there's any other advantages..:sad:
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    Find Signal to noise ratio (SNR)

    has a transfer characteristic |H(f) given in the link below. The transmission is at maximum error-free rate of 4,800 bps. Compute the SNR (signal-to-noise-ratio) at the channel output. Does the output signal suffer from any distortion? ImageShack® - Online Photo and Video Hosting First.. from...

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