COMPGROUPS.NET | Search | Post Question | Groups | Stream | About | Register

estimation #2

• Email
• Follow

```Dear all,
My question is about estimation I found in many algorithms.
x(n)=b*x(n)+(1-b)*x(n-1);-----> (DCT and DFT LMS, power normalized-NLMS)
and sometimes its:
x(n)=b1*x(n)+(1-b1)*x(n-1) if x(n)>x(n-1);
x(n)=b2*x(n)+(1-b2)*x(n-1);

I'm working in echo cancellation...
I want to know how derive it and the effects on my x(n) signal...
References are welcome...
thank you
```
 0
Reply mmoctar (16) 3/5/2009 4:45:33 PM

See related articles to this posting

```On Mar 5, 11:45=A0am, "mmoctar" <mmoc...@gmail.com> wrote:
> Dear all,
> My question is about estimation I found in many algorithms.
> x(n)=3Db*x(n)+(1-b)*x(n-1);-----> (DCT and DFT LMS, power normalized-NLMS=
)
> and sometimes its:
> x(n)=3Db1*x(n)+(1-b1)*x(n-1) if x(n)>x(n-1);
> x(n)=3Db2*x(n)+(1-b2)*x(n-1);
>
> I'm working in echo cancellation...
> I want to know how derive it and the effects on my x(n) signal...
> References are welcome...
> thank you

Simon Haykin:
=3Dpd_bbs_1?ie=3DUTF8&s=3Dbooks&qid=3D1236274152&sr=3D8-1

```
 0
Reply ikarosilva (169) 3/5/2009 5:30:17 PM

1 Replies
58 Views

Similar Articles

12/5/2013 9:23:45 PM
page loaded in 46185 ms. (0)

Similar Artilces:

Performance estimation for classification algorithm
, the way it is done in the "field" is to mostly rely on current measures as somehow related to reliability, and then go through continuous rounds of sample collection and classifier re-training. There are a few resources I have come across for estimation. Reliability estimation of a statistical classifier Pandu Ranga Rao Devarakota, Bruno Mirbach, Bjorn Ottersten http://portal.acm.org/citation.cfm?id=1326360.1326437&jmp=abstract&coll=GUIDE&dl=GUIDE&CFID=12919427&CFTOKEN=32122383#abstract Estimation of Classifier Performance K. Fukunaga, R. R. Hayes http

Estimation with Use Cases
This book was just released in ebook and is due in hardcopy in a couple weeks... http://www.porterlearning.com/publications.html "Estimation with Use Cases: A Simple and Effective Approach to Estimating Software Projects" by Jon Porter. The primary goal of this publication is to provide a simple method of forming useful estimates of time and effort in the early phases of object oriented software projects. The estimation methodology presented here is based on Use Case Point Analysis, a derivative of Function Point Analysis. This publication includes a point-by-point process on how to perform estimation and requires no special knowledge beyond this writing to implement. The author has been successfully using this method for 8 years and has estimated over 200 projects. What is most remarkable is that a useful project estimate can be made in about an hour using relevant high-level use cases.

Channel Estimation During Data period
) communication, to a >totally wrong channel model with nonexistant communication. > >Rune > Hi Rune, I thought so. Actually, I did soem experiment and I wanted to do channel estimation. From the channel estimation that I did, it turns out that it was pretty nasty channel. And for that channel my receiver gives 0.3 BER. Just one more que: if the channel is completely characterised as Rayleigh, i.e. time varying freq selective Rayleigh fading, then is it true that adaptive DFE will fail? Thanks again Chintan Google "blind equalization". STUPIDENT cpshah99 wrote: > Hi... to symbol, generally all bets are off. That's >a nearly impossible task unless you're willing to spend a LOT of power >and bandwidth overhead on pilot tones and/or other mechanisms to >facilitate faster adaptation. > > Hi Eric I agree with you about OFDM. But when I did the channel estimation during training, I could see that channel is about every 10 to 20 symbols. I have seen some papers where they distribute training seq peridically. But in my case, I would rather use ARQ protocol. :-) Thanks everybody. Chintan On 5 Aug, 19:52, Eric Jacobsen <eric.jacob.

Requirements sizing/effort estimation
My group is responsible for creating requirements for a large-scale internal business system. My question is this, what ways are there to estimate the size of our requirements effort? Today, we receive a very brief synopsis of what marketing wants to have accomplished and then I'm expected to estimate the work (effort) required to complete the work. Additionally, we are time-boxed - we only have a set amount of time to create the requirements. I've looked into COCOMO and Function Points, but those don't seem to fit in my situation because they're more focused on measuing ef

Estimation with Use Cases a Simple and effective Approach
This book was just released in ebook and is due in hardcopy in a couple weeks... http://www.porterlearning.com/publications.html "Estimation with Use Cases: A Simple and Effective Approach to Estimating Software Projects" by Jon Porter. The primary goal of this publication is to provide a simple method of forming useful estimates of time and effort in the early phases of object oriented software projects. The estimation methodology presented here is based on Use Case Point Analysis, a derivative of Function Point Analysis. This publication includes a point-by-point process on how to perform estimation and requires no special knowledge beyond this writing to implement. The author has been successfully using this method for 8 years and has estimated over 200 projects. What is most remarkable is that a useful project estimate can be made in about an hour using relevant high-level use cases.