Recent content by beyondlight

One possible substitution is 2x(z)^4 But I am not sure how to proceed from here...

Homework Statement Determine all primitive functions for the function: 2x(x^2+3)^4 2. The attempt at a solution When i expanded i got the primitive to be: 2(x^9/9)+3x^8+18x^6+54x^4+81x^2But this was wrong. I am not sure I have understood the question. Help?

But since s_hat is corrupted by noise then this will not be exactly true?

Homework Statement I am designing a MIMO communication system, with input signal s, channel H and transform matrix T. The received signal is corrupted by noise. Homework Equations [/B] The received signal is r = Hs+n And then it is transformed (compressed) by: y = Tr And then its...

Thanks for all the answers! You guys are awesome. I will check out Visio and TinyCAD. Will read more about drawing figures in Latex.

I am doing my thesis now and I will write it in Latex. But I need some kind of program to draw figures on communication symbols such as antennas, ADC converters, block diagrams with addition/subtraction/multiplication. Probably this can be done in Latex, if so i would need some guidance on...

I would like to know a typical W/L value for a MOSFET transistor. L = channel length W = channel width/transistor width I am currently designing L to be L = 0.0001 cm for a transistor. Cox = 5nF mobility 1155 cm^2/Vs K = 0.583 mA/V^2 This gives W = 20 cm. But this is way to large for a...

I have big trouble understanding how current flows in semiconductors. As i have understood it it has to do with "valence" and "conduction" bands. I see valence bands as an discrete energy level within an atom that are possessed by electrons. These electrons do not contribute to a net current...

Homework Statement Calculate gain (u_o/u_i) for a differential amplifier with symmetric output. Both transistors have the same transconductance gm. Transistor output resistance r_0 is neglected here. circuit: http://sv.tinypic.com/view.php?pic=14cea8p&s=8#.VSf7Evl_vxM Homework Equations...

From earlier examples I've seen in lectures that u_in is nonzero in quiesent operation. For example: U_gsq = 5 V, U_dsq = 5.5 V and I_dsq = 4.5 mA. I got the right answer so you are most probably right. But the quiescent current is a DC current so the quiescent input voltage must also to be a...

I don't understand why u_in = 0 just because it is the quiescent current?

Homework Statement Calculate Rs so that the draincurrent ID = 4 mA. Vad does the gain A become? uo/ui? For the transistor: k = 3 mA/V^2 Vt = -2 V also: R1 = 50 k ohm Rd = 2.2 k ohm C = infinity for signalfrequencies image of circuit...

My bad! I wrote the if statemens completely wrong. omg :P if dogMiddle(j+x,k+z)<dogMiddle count_middle=count_middle+1; Im referring to the whole dogMiddle! it should only be one point. That is dogMiddle(j,k).

The blobdetector consist of the following functions: gaussImage: Filters a image with a gaussian filter gaussPyramid: Uses gaussImage to filter the same image several times with different std. diffOfGaussians: Uses gaussPyramid to compute the difference between consecutive filtered images...

I can starta a thread soon with my code in and get some help with optimizing it. I think it's important to know how to write code without for loops since they are time consuming and it seems the most basic way to optimize stuff in MATLAB. The problem is that i do not know how many local max...