Matrix representation of conic sections: Difference between revisions

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'''Rician fading''' is a [[stochastic]] model for [[radio]] [[Wave propagation|propagation]] anomaly caused by partial cancellation of a radio [[Signalling (telecommunication)|signal]] by itself — the signal arrives at the receiver by several different paths (hence exhibiting [[multipath interference]]), and at least one of the paths is changing (lengthening or shortening). Rician fading occurs when one of the paths, typically a [[Line-of-sight propagation|line of sight signal]], is much stronger than the others. In Rician fading, the amplitude gain is characterized by a [[Rician distribution]].
BMI, or body mass index, is calculated by dividing by fat by height squared. Specifically, it's fat in kilograms divided by height inside meters, squared. If you like pounds and inches, then it's weight inside pounds *703 divided by height inside inches, squared. For instance, I am 5'8" tall plus weigh 179 pounds. 179*703 = 125837. 5'8" is 68 inches, and 68^2 = 4624, finally, 125837/4624 = 27.21 plus that's my BMI. If you don't like doing all that calculating, there are lots of online BMI calculators e.g.<br><br>The ideal information I can provide you, is don't put too much weight (pun intended) into the calculators. Neither considers a muscle mass, hereditary make-up or alternative factors which makes every persons weight unique.<br><br>This article was written August 15, 2013 plus Gabriel Cousens is 70 years of age. So in the event you plan on going to his center, I advise which we do it soon. As of 2011, over 11% of Americans (adults) have diabetes. The rate of prediabetes (not very high enough to be diabetes) in America is 3 instances because significant because this.<br><br>So being the girl I am plus having a have to recognize form of notice, I found an online [http://safedietplansforwomen.com/bmi-calculator bmi calculator men] and put inside my numbers. After my friend Sally's experience I was sure that mine would at the least state I was at the high-end of regular. Oh but no, my online BMI outcome was that I was underweight. WTF? Again I recognize which everyone has their own perception of what exactly is thick plus was is not however if I were to truthfully judge where I think my fat should fall I would have mentioned average, particularly with all the knowledge which Sally's returned on the high-end of overweight.<br><br>Now, moderately active women are a little different! Woman at 119lbs should have 1,200 calories; 120 to 134 could have 1,400 calories; 135 to 144lbs 1,600 calories; and ladies that are 145lbs plus over could make sure they get 1,800 calories a day.<br><br>In order to determine perfect weight for kids plus teens (between age group 2-20 years), there is a specific reference tool called the BMI percentile chart. In case, when the % value falls at 80, it means the kid is having more weight than 80 % of the kids of the same gender and age group. According to the chart, a child's body mass index falling in 95 percentile or above indicates he is overweight, whilst those with a BMI above 85 percentile have a risk of becoming overweight. On the alternative hand, if a kid's BMI percentile is 5 or lower, he/she is underweight.<br><br>There are three leading places inside California where you are able to get California Medical Weight Management program. San Ramon, Watsonville plus Santa Clara are three primary places. Get an appointment fixed with the doctor from any of the clinic and fill the free consultation form online. Losing fat is fun plus simple for sure from here. It is the reality is the last time for you to lose fat when you follow it correctly. Moreover, it provides various more benefits that there are when you join it. You will truly feel the lifetime changed. Hurry up and join the fat reduction program today.
 
[[Rayleigh fading]] is the specialised model for stochastic fading when there is [[Non-line-of-sight propagation|no line of sight signal]], and is sometimes considered as a special case of the more generalised concept of Rician fading. In Rayleigh fading, the amplitude gain is characterized by a [[Rayleigh distribution]].
 
== Channel characterization ==
A Rician fading channel can be described by two parameters: <math>K</math> and <math>\Omega</math>.<ref>Abdi, A. and Tepedelenlioglu, C. and Kaveh, M. and Giannakis, G., [http://dx.doi.org/10.1109/4234.913150 "On the estimation of the K parameter for the Rice fading distribution]", ''IEEE Communications Letters'', March 2001, p. 92 -94</ref> <math>K</math> is the ratio between the power in the direct path and the power in the other, scattered, paths.<ref>"Statistical properties of a sine wave plus random noise" SO Rice - ''Bell Syst. Tech. J'', 1948</ref> <math>\Omega</math> is the total power from both paths (<math>\Omega=\nu^2+2\sigma^2</math>), and acts as a scaling factor to the distribution.
 
The received signal amplitude (''not'' the received signal power) <math>R</math> is then [[Rice distribution|Rice distributed]] with parameters <math>\nu^2 = \frac{K}{1+K}\Omega</math> and <math>\sigma^2 = \frac{\Omega}{2(1+K)}</math>.<ref>Richards, M.A., [http://users.ece.gatech.edu/mrichard/Rice%20power%20pdf.pdf Rice Distribution for RCS], Georgia Institute of Technology (Sep 2006)</ref> The resulting [[Probability density function|PDF]] then is:
:<math>
f(x) = \frac{2(K+1)x}{\Omega} \exp\left(-K-\frac{(K+1)x^2}{\Omega}\right) I_0\left(2\sqrt{\frac{K(K+1)}{\Omega}}x\right)
,</math>
where <math>I_0(\cdot)</math> is the 0th order modified [[Bessel function]] of the first kind.
 
== See also ==
* [[Fading]]
* [[Multipath propagation]]
* [[Diversity scheme]]s
* [[Rayleigh fading]]
* [[Rice distribution]]
* [[Stochastics]]
* [[Statistics]]
 
== References ==
<references/>
* Lindsey, W. "[http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1053703 Error probabilities for Rician fading multichannel reception of binary and N-ary signals]", ''IEEE Transactions on Information Theory'', Volume 10, Number 4, October 1964, Pages 339&ndash;350.
* [http://www.wirelesscommunication.nl/reference/chaptr03/ricepdf/rice.htm Rician Fading] explained on [http://www.wirelesscommunication.nl wirelesscommunication.nl].
 
{{Audio broadcasting}}
 
{{DEFAULTSORT:Rician Fading}}
[[Category:Radio frequency propagation fading]]
 
 
{{wireless-stub}}

Latest revision as of 23:06, 25 August 2014

BMI, or body mass index, is calculated by dividing by fat by height squared. Specifically, it's fat in kilograms divided by height inside meters, squared. If you like pounds and inches, then it's weight inside pounds *703 divided by height inside inches, squared. For instance, I am 5'8" tall plus weigh 179 pounds. 179*703 = 125837. 5'8" is 68 inches, and 68^2 = 4624, finally, 125837/4624 = 27.21 plus that's my BMI. If you don't like doing all that calculating, there are lots of online BMI calculators e.g.

The ideal information I can provide you, is don't put too much weight (pun intended) into the calculators. Neither considers a muscle mass, hereditary make-up or alternative factors which makes every persons weight unique.

This article was written August 15, 2013 plus Gabriel Cousens is 70 years of age. So in the event you plan on going to his center, I advise which we do it soon. As of 2011, over 11% of Americans (adults) have diabetes. The rate of prediabetes (not very high enough to be diabetes) in America is 3 instances because significant because this.

So being the girl I am plus having a have to recognize form of notice, I found an online bmi calculator men and put inside my numbers. After my friend Sally's experience I was sure that mine would at the least state I was at the high-end of regular. Oh but no, my online BMI outcome was that I was underweight. WTF? Again I recognize which everyone has their own perception of what exactly is thick plus was is not however if I were to truthfully judge where I think my fat should fall I would have mentioned average, particularly with all the knowledge which Sally's returned on the high-end of overweight.

Now, moderately active women are a little different! Woman at 119lbs should have 1,200 calories; 120 to 134 could have 1,400 calories; 135 to 144lbs 1,600 calories; and ladies that are 145lbs plus over could make sure they get 1,800 calories a day.

In order to determine perfect weight for kids plus teens (between age group 2-20 years), there is a specific reference tool called the BMI percentile chart. In case, when the % value falls at 80, it means the kid is having more weight than 80 % of the kids of the same gender and age group. According to the chart, a child's body mass index falling in 95 percentile or above indicates he is overweight, whilst those with a BMI above 85 percentile have a risk of becoming overweight. On the alternative hand, if a kid's BMI percentile is 5 or lower, he/she is underweight.

There are three leading places inside California where you are able to get California Medical Weight Management program. San Ramon, Watsonville plus Santa Clara are three primary places. Get an appointment fixed with the doctor from any of the clinic and fill the free consultation form online. Losing fat is fun plus simple for sure from here. It is the reality is the last time for you to lose fat when you follow it correctly. Moreover, it provides various more benefits that there are when you join it. You will truly feel the lifetime changed. Hurry up and join the fat reduction program today.

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