Recent content by NW8800

Anyone?

Hi, I'm currently perusing ideas for research in the area of Terahertz waveforms. I was wondering if anyone could shed some light on previous works dealing with Terahertz insulator materials and reflection properties. Any guidance would be greatly appreciated! Regards, NW

How would I find the initial conditions terms, like would I take the Z-transform of the difference equation when i sub in the initial condition terms to the difference eqn?

Thanks for that CEL :) Seem to be getting somewhere :d For my last question the the 1st post... With B(z) - the output from block H(z)... would B(z) = C(z) * H(z) Which equals B(z) = H(z)G(z)[R(z)-H(z)C(z)] ...>?

What the inverse z-transform for the transfer function of this system and how do I sub in the initial conditions in this equation and then a[n]?

Could someone please show me how to get the difference equation of the transfer function of the system?

CEL could you please help me further with this?

Hey CEL, Thanks very much for your fast reply :) Can I ask, how you got \frac{C(z)}{A(z)}=\frac{z(z+8)}{(z+2)(z+4)} I had: \frac{z}{(z+1)} * \frac{(z+1)(z-8)}{(z+1)(z-8)+9z} Simplify to \frac{C(z)}{A(z)}=\frac{z(z-8)}{(z-2)(z+4)} Where H(z) = 9/(z-8)..? Also would the...

Hey, Thanks for the replies... I can’t believe I made that mistake... CEL is right is a negative feedback system, sorry about that, it was late when I was drawing that pic :P Thanks for showing the steps of how you got that jhicks :) For the comparator (circle) A(z) is + and the Output...

Hey, I have the following standard feedback system: http://img112.imageshack.us/img112/7152/feedbacksystemuq5.jpg This shows the Z-Transform where: A(z) is the z transform for input a[n] and C(z) is the z-transform of the system's output c[n]...

Hey, Thanks for your reply! I seem to have it all sorted cept for question 2: 2. (Normal Distribution) For a group of trucks, it was found on an annual basis that the distance traveled per truck is normally distributed with a mean of 50.0 thousand km and a standard deviation of 12.0...

Hey, I'm new to all this so cut me some slack, but have been trying to work through some questions, and I can't seem to find answers to these questions... Or atleast find the confidence that my answers/working is correct... 1. (Exponential Distribution) Telephone calls arrive at the...

Hey, I have a problem.,. I am trying to figure out smallest angle of incidence θ for which a ray can enter the left face of the prism (seen in the pic below) and exit the right face. The infomation I have: The isosceles prism has apex angle φ = 56.1° and index of refraction n = 1.42...

Hey I have 2 questions (q2 follows on from q1), both on average heat power: Homework Statement 1) In an experiment to determine the rate at which heat is extracted from a hot material, 302 g of the material at 90 °C is put into a 50 mm diameter copper vessel to a depth of 90 mm as shown...

Hey, I have tried this question... But I can't seem to get the answer right... I get about 27.85cm... But I think this value is incorrect... Can someone try this, and tell me what they got/how they did it? Thanks. NW