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

system bandwidth and signal bandwidth

Status
Not open for further replies.

kotta

Junior Member level 2
Joined
Nov 21, 2006
Messages
22
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,439
System bandwidth I believe is the overall bandwidth (the processor bandwidth), where as signal bandwidth is the actual frequency of communication.
 

LvW

Advanced Member level 5
Joined
May 7, 2008
Messages
5,817
Helped
1,738
Reputation
3,478
Reaction score
1,337
Trophy points
1,393
Location
Germany
Activity points
39,034
hi every one,

what is the difference of system bandwidth and signal bandwidth?
I hope this is no joke.
System bandwidth is the bandwidth of a system and signal BW is the occupied BW of a signal.
Is there anything else to say?
 

Ramakrishna47

Newbie level 6
Joined
Jun 4, 2011
Messages
11
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
VNIT,Nagpur
Activity points
1,351
thanks LvW

if i want to design baseband filter ,then what bandwidth i have to consider
 

themaccabee

Full Member level 4
Joined
Apr 1, 2007
Messages
201
Helped
6
Reputation
12
Reaction score
6
Trophy points
1,298
Activity points
3,003


Hi i think if the input signal X is fed to a system with a transfer function G, the output Y is obtained by modifying X by the system in accordance with it transfer function G.Say now if we are increasing the input signal frequency of X , but since the system has a finite bandwidth the output modification(Y=G*X) will be correctly done only up to a certain frequency say f. So this 'f' is the system bandwidth.


For signal band width of X , it is determined by the highest frequency content present in it.

Im i correct??
Regards
 
Last edited:

LvW

Advanced Member level 5
Joined
May 7, 2008
Messages
5,817
Helped
1,738
Reputation
3,478
Reaction score
1,337
Trophy points
1,393
Location
Germany
Activity points
39,034
thanks LvW

if i want to design baseband filter ,then what bandwidth i have to consider
For my opinion, this is not really a question that can be answered.
Some basics:
A group of frequencies (e.g. a modulated signal) consists of some frequencies that are wanted (they belong to the signal) - and, unfortunately, in most cases also of some unwanted components (e.g. harmonics due to non-linearities).
This is the case of a filter - and you have to decide: What is the task of the filter?
In detail: Which range of frequencies shall pass and which range has to be suppressed?
This leads to one of the basic filter types: Lowpass, highpass, bandpass, bandstop.
So, it's up to you (the user) to specify the requirements to the filter (transmission bandwidth, frequencies to be attenuated by how many dB?)

You see, it's to early to give you a specific answer, OK?
 

Syncopator

Full Member level 6
Joined
Dec 15, 2010
Messages
368
Helped
70
Reputation
140
Reaction score
66
Trophy points
1,308
Location
N.E. Lincolnshire U.K.
Activity points
3,395
what is the difference of system bandwidth and signal bandwidth?
System bandwidth is the range of frequencies which a system can carry, or, more correctly, it is the difference between the maximum and minimum frequencies.

Signal bandwidth is the range of frequencies associated with a signal, or, more correctly, it is the difference between its maximum and minimum frequencies.
 

Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top