mls.m

Generates maximum length sequences, which are pseudorandom noises useful for acoustic measurements.

Description

Function can accept bit lengths of between 2 and 24

y is a vector of 1's & -1's that is (2^n)-1 in length.

• Acknowledgements: This submission has inspired the following:; MLS generator
• MATLAB release: MATLAB 5.3 (R11)

[Cristian Gutiérrez]

Excellent code for a binary pseudorandom sequence generation.
The use of MLS forms a powerful method for the accurate determination of Impulse Response in LTI system.

[Basile Graf]

Just what you expect from it. Thanx.

[Lukasz Panek]

this tool works fine and is easy to use.

[Tim Streeter]

There are couple issues with this MLS sequence generator. The primitive polynomial list has a few errors (lines 29-180). This list is not necessary given that Matlab has a built in function to generate these (gfprimdf.m) For example, the 7th order MLS
sequence output is incorrect. Given the use of the tap list, this code is slightly inefficient.

[Tim Streeter]

I apologize... I made a mistake in the stating that there is an error in the primitive polynomial list. Those tap lists are correct.

[Wa Yuen]

very efficient code