what is the use of matched filter at the reciever side?
Answers were Sorted based on User's Feedback
Answer / sumeet
a matched filter is a linear filter designed to maximise the
signal to noise ratio.
Is This Answer Correct ? | 4 Yes | 1 No |
Answer / nawabumar(pakistan)
matched filter as the name suggest is a filter having an
impulse response matched to the expected or transmitted
pulse(matched but not same).If the pulse has the
waveform |
|
_______|\______(t) i.e a negative ramp than the
impulse response of filter is obatained by shifting the
mirror image of this waveform i.e from x(t) we obtain
x(T-t).
|
|
______|/______
where T is the symbol duration.convolution of these two
signals results in a signal having maximum value of SNR at
instant T(precisely T).So we sample the resulting signal at
instant T and try to achieve best possible detection at the
reciver.(decision making process after getting this sampled
value)refer to Digital Communication by Sklar 2/e page
no.123
Hope this helps
Is This Answer Correct ? | 2 Yes | 1 No |
HAI HELLO EVERYBODY, GOOD EVINING. THIS IS ANIL KUMAR. IAM WORKING AS A OSS-SR.ENGG IAM LOOKING FOR LEARNING TELECOM PROTOCOLS. PLZ HELP ME. HOW COULD I GET INFORMATION AND MATERILS.
What is the difference between binary code and bcd?
plz tell me the syllabus for airport authority of india recruitment for the post of Jr. electronics engineer.let me know whether written test will be a aptitude test or technical??
Explain why the antenna is called passive element?
I had completed my diploma in electronics and communication. Currently am working with a pvt. ltd. (with two years of experiences) company which makes panel using plc, VFD(drivers) and scada monitoring system. so should i get supervisor licence for my supervisor post???
Explain what is the difference between plc and dcs?
Define what types of carriers are present in space charge region?
Plz tell me the GATE interview question asked for ECE branch?
What ODU work?
Can any one some basic data sheets abt the transmitter and gauges..
Waht is DTX?
Why is bleeder resistance employed in a filter circuit?