BER

[gaurav rajput]

Hi everyone,

Can someone please explain What is threshold in BER analyzer? Does it vary from design to design ?

Thankyou

[gaurav rajput]

Hi all,

someone please help..

Regards

[Remo De Suza]

Hi Gaurav.

The threshold is the value based on the received bits level compared to which the bit is detected. If the received bit amplitude is less than the threshold, the bit is detected as a logic “0”, and if the bit amplitude exceeds that of the threshold, the bit is detected as a logic “1”. I hope it helps.

Regards
Remo

[Domail Singh]

Hello Remo
Your reply seems apt to me. I hope this would help Gaurav’s understanding of threshold.

Regards
Domail

[FAYIQA NAQSHBANDI]

HELLO GAURAV..

The definition given by Remo can be one of the many definitions of threshold.. You can refer to the link provided below by Remo it will help you i suppose.

Regards
FAYIQA

[shafeen al yasin]

Hi Gaurav,
I agree with Remo.

Regards
Shafeen

[nagesh kuknoor]

Hi Gaurav,
threshold is very essential parameter to be set in the tranmission channel.
if threshold is smaller, then there is great possiblity of heaving eerors in system because of noise power greater than threshold.
if threshold is larger, there is possibility of loss of bits(i.e again error) in reception, because bit power can be less than threshold because of channel attenuation thus threshold is to be optimized for minimum BER.

Thanks

[Domail Singh]

Hello Nagesh
I agree with you too. It is almost the same concept as remo has stated. Anyway thank you.

Regards
Domail

[nagesh kuknoor]

Hello Domail,

yeah i know..Anyway you are welcome.

Regards
Nagesh

[Remo De Suza]

Check the link. It has been discussed here. Hope it helps you.

BER analyzer

Regards
Remo

[nagesh kuknoor]

Hi Remo,
I agree with you. The links you have provided should be helpful to Gaurav. I would suggest him to go through the link for further help.

Regards

[Remo De Suza]

Hello Nagesh.
Thank you for your appreciation. The link contains all what he needs i hope it helps him.

Regards
Remo

[nagesh kuknoor]

Hi Remo,

You are welcome. It is my pleasure

Regards

[Domail Singh]

Hi Remo
Thank you for the Link. It is rather helpful. hope it helps Gaurav to some extent

Regards
Domail

[FAYIQA NAQSHBANDI]

HI..
Try to follow this Link.. It will be surely of some help to you.

Regards
FAYIQA

[Rajguru M. Mohan]

Hi Gaurav,
Threshold is important parameter in case of eye pattern.
We analyse the performance of a communication system is its Bit Error Rate (BER) measured at the receiver.
However BER is pass/fail in nature (i.e., a threshold of BER is set and we check if the system BER is greater
than or less than this threshold) and it conveys nothing more.
We find probability of occurrence of 0 or 1 with help of threshold, because first we set threshold value then we the value of signal greater than this threshold is detected as 1 otherwise 0.

Here are links you can refer to:
http://yellowfourier.com/eyedia.html
http://www.edn.com/design/test-and-measurement/4389368/Eye-Diagram-Basics-Reading-and-applying-eye-diagrams
http://opticfibrecommunication.blogspot.in/2012/11/eye-diagrams.html

Regards,
Rajguru

[nagesh kuknoor]

Hi Rajguru,
Thank you for sharing the links. I think these should help gaurav for further referral.

Regards

[Domail Singh]

Hello Rajguru
Thank you for the information. I hope it will help gaurav’s cause.

Regards
Domail

[shafeen al yasin]

hello Rajguru,
Thank you for the information that you have provided.
Regards
Shafeen

[Remo De Suza]

Hello All,
I think Rajguru also mentioned some links which may be helpful tou you . i hope your doubts get clear.

Regards

[Ankita Sharma]

Hi Gaurav,

The links mentioned by Rajguru are very helpful… I suggest you to go through the links…

Regards
Ankita

[Manoj Kumar]

Hi all,

I agree with Remo The threshold is the value based on the received bits level compared to which the bit is detected. If the received bit amplitude is less than the threshold, the bit is detected as a logic ?0?, and if the bit amplitude exceeds that of the threshold, the bit is detected as a logic ?1? Also try to see the links where it has already been discussed on the forum..

Regards

[Domail Singh]

Hello Manoj
I too agree with you that The threshold is the value based on the received bits level compared to which the bit is detected. If the received bit amplitude is less than the threshold, the bit is detected as a logic 0.
I hope it is kind of helpful to Gaurav.

Regards
Domail

[deepak jha]

Hi Rajguru,

Thanks for providing the useful Inormation…
Hope it helps Gaurav

Regards

[Manoj Kumar]

Hi Rajguru,

Thanks for the useful information..

[gaurav rajput]

Hi all,

Thanks for your responses… Highly appreciate the efforts of Rajguru..

Regards

[FAYIQA NAQSHBANDI]

HI GAURAV..

You are welcome anytime..

Regards

[nagesh kuknoor]

Hello Gaurav,

You are welcome.

Regards
Nagesh

[Ankita Sharma]

Hi Gaurav,

You are welcome… Hope you got the desired information on the forum…

Regards
Ankita

[Ankita Sharma]

Hi Deepak,

You have posted a blank submission…. Kindly look into it…

Regards
Ankita

[Domail Singh]

Hello Ankita
It shows this when someone joins forum. Same happened to me when i joined.

Regards
Domail

[deepak jha]

Hi Deepak,

What is awaiting moderation ?

Regards

[Domail Singh]

Hi Deepak
It shows this message when new member joins. Same happened to me as well.

Regards

[deepak jha]

Hi Domail Singh,

Well I am unaware about it… Anyways thanks for the information…

Regards

[Domail Singh]

Hi Deepak
you are welcome

Regards
Domail

[Manoj Kumar]

Hi Deepak,

Actually the account has yet to be approved to comment on the forum..Thats why showing awaiting moderation…

Regards

[deepak jha]

Hi Manoj,

Thanks for the information… I got it…

Regards

[Manoj Kumar]

Hi Deepak,

You are welcome..

[Domail Singh]

Hi all

It was very helpful and productive discussion. Thank you all for your anticipation.
Regards
Domail

[Manoj Kumar]

Hi Domail,

Well you are welcome..

Regards

Regards

[shafeen al yasin]

Hi All,
This has been a good discussion overall. Thanks to optiwave forum.

regards
Shafeen

[Rahul Tiwari]

Hi ALL,

I agree with Shafeen that this has been a good discussion..

Regards
Rahul Tiwari

[FAYIQA NAQSHBANDI]

HI ALL..
This has been a good discussion and very helpful indeed.. I appreciate..

Regards

[deepak jha]

Hi Fayiqa,

This has been a very good discussion indeed…

Regards

[nagesh kuknoor]

Hello,

I agree to that. It really has been helpful

Regards
Nages

[Ankita Sharma]

Hi all,

It has indeed been a very good discussion…

Regards
Ankita

[Author]

Posts