Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

power spectral density of a product of signals

Status
Not open for further replies.

Faudy

Newbie level 3
Joined
Aug 3, 2009
Messages
3
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,301
spectral density

I will consider the example of a smooth periodogram estimation, where the data is multiplied by a window:

x2(t) = x1(t) h(t)

the fourier transform of this signal is the convolution of the fourier transforms of x1(t) and h(t)

X2(f) = X1(f) * H(f)

the Power Spectral Density of x2(t) is then

Sx2(f) = |X1(f) * H(f)|^2

Given a particular window (like hanning, hamming...),
can we express Sx2(f) as a function of Sx1(f)?
 

Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top