how to generate pseudo random noise(PRN) binary sequence using shift registers?

[Mink]

what is the block diagram to generate pseudo random noise (PRN) binary sequence of 1's and 0's using shift registers

please help

 i need 2 submit this project in this week

[Norbert_B]

Requires LV Full Development System....

Norbert

[LV_Pro]

This is a fairly simple homework problem. My hints (on the LabVIEW side):

1- look at while loops

2- look at shift registers on while loops with multiple input elements

3-look at the logic components, AND, OR XOR

Look at this wiki article: http://en.wikipedia.org/wiki/Linear_feedback_shift_register

Do the work, you won't learn if someone shows you how it is done! The palette that the previous post points to are of PRN and other "noise generators" but I suspect that is not what you are after.

Know that creating a PRN with a reasonable number of shift register taps produces very pseudo results, as the "random" pattern begins to repeat pretty quickly, thereby making it not a truly random number. 

When you have an attempt that is sort of working and want additional suggestions, post the code here. We won't do your work, we will help you try to do it, and learn it, yourself.

[Mink]

 thnx 4 ur valuable suggestion

m  bein alotted this project to generate this prn sequence of length, l=2^n - 1, where n are the no. of shift registers,

but m beginner in lab view and i need to submit this project v soon

[jcarmody]

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@SharmaManisha wrote:

 thnx 4 ur valuable suggestion

m  bein alotted this project to generate this prn sequence of length, l=2^n - 1, where n are the no. of shift registers,

but m beginner in lab view and i need to submit this project v soon

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Your keyboard is broken.

[Mink]

Sir,

May i know how to proceed for this topic

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@jcarmody wrote:

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@SharmaManisha wrote:

 thnx 4 ur valuable suggestion

m  bein alotted this project to generate this prn sequence of length, l=2^n - 1, where n are the no. of shift registers,

but m beginner in lab view and i need to submit this project v soon

---

Your keyboard is broken.

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[Norbert_B]

Since you obviously have to implement the shift register yourself (homework task?), the key you seem to miss is that you can extend the shift register node in LV on the left hand side. This grants access to "elder values than only the last one".

Norbert

[Norbert_B]

You should search NI Community or google. You can find tons of examples for stacked shift registers like this one.

hope this helps,

Norbert