Recent content by sukh_ece

Thanks...

@mfb...thanks... I don't understand ur answer...where we can add the factor 2?...different frequencies contribute to the signal formation...a signals energy is equal to integration of the square of spectrum over entire frequency range (Parsevaals theorem)...that means negative frequencies exist...

Thanks @mfb and @the_emi_guy... If we can ignore the negative frequencies for a signal...then there is one doubt... The bandwidth of a signal ranging from -fm to fm is 2fm...then why we consider negative frequencies in finding the bandwidth...

Negative frequencies in spectrum analysis... Hello everyone... When we do the frequency analysis of a signal using Fourier transform, we get spectrum at negative frequencies also. What are they and what is the physical significance of such frequencies? Its hard for me to imagine a negative...

thanks Bill for your valuable suggestions...

Okay Good and thanks... just want to say that whenever phenomenon involves mathematics...things become more interesting...but at the beginers stage u need more explanation...so just want to make sure whether that book explains the equations well... thanks Sukhbir Singh

Dont know much about function analysis...rest are reasonable...My recent research topic in Masters was optical communication...there i found some dense QM in some research papers...so that's why i was getting inclined towards QM...thats why...i was asking...

Thanks everyone... @George...My maths background is good...but still i would prefer a book doing good explanations on equations... Thanks once again...everyone...

Hello every one... I am a beginer in quantam mechanics... Plz tell me a simple book to start... thanks in advance...