Matlab

Explain the codes below

% Jake.m

% Generate a frequency selective fading

function [r, iout, qout] = Jake(idata, qdata, nsamp, fs, fc, NN, N1_arr, velocity, counter_arr, delay_time, attn, flat)

%****************************** variables *******************************

% idata input Ich data

% qdata input Qch data

% nsamp Number of samples to be simulated

% fs Sampling frequency (Hz)

% fc Carrier Frequency (Hz)

% NN Number of paths

% N1 Number of waves in order to generate fading

% velocity Mobile speed in Km/h

% counter Fading counter

% delay_time Delay for each fading path (ns)

% attn Attenuation level for different fading paths (dB)

% flat flat fading or not

% r Envelope of fading channel complex impulse response

% iout output Ich data

% qout output Qch data

%************************************************************************

v = velocity./3.6; % m/s

c = 3e8;

fm = fc*v/c; % Maximum doppler frequency (Hz)

delay_samp = round(delay_time.*fs.*1e-9); % normalized delay time in number of samples

total_attn = sum(10.^(-1.0.*attn./10.0)); % normalize the power

tstp = 1/fs; % minimum time resolution

iout = zeros(1,nsamp);

qout = zeros(1,nsamp);

r = zeros(1,nsamp);

theta = zeros(1,nsamp);

for i=1:NN

atts = 10.^(-0.05.*attn(i)); % attenuation for current path

  

[itmp, qtmp] = delay(idata, qdata, nsamp, delay_samp(i));

[r_single, iout_single, qout_single] = fade2(itmp, qtmp, nsamp, tstp, fm, N1_arr(i), counter_arr(i), flat);

  

counter_arr = counter_arr+200; % update counter

  

iout = iout + atts.*iout_single./sqrt(total_attn);

qout = qout + atts.*qout_single./sqrt(total_attn);

  

end

r = sqrt(iout.^2+qout.^2);

Write a MATLAB function named numberWords() that takes a whole number as an argument and returns a string containing the number word for the whole numbers 0 - 999.

For example:  numberWords(234) would return 'two hundred thirty-four'

If the input value is not a whole number between 0 - 999 then the function should return a string equivalent to 'ERROR'.

Application	A solar photovoltaic (PV) power system was installed outdoor near PMU campus. The objective is to study the environmental effects (Temp, Humidity, Dust, Wind…) on the PV panel total generated electric power. The environmental data should be acquired and monitored from a remote center in PMU Labs ( Your task is not to measure PV output power)
Your Task	To design a measurement system to meet the application requirements. Assume the availability of the following six sensor temperature, humidity, dust, light, solar radiation and wind speed/direction.

c) Define the measurement system specifications to meet the above application requirements

1
2
3
4

d) Develop a feasible design: draw the measurement system block diagram and describe the function of all needed subsystems

matlab code to calculate cost (min cost) of generators for 30 bus IEEE.

An example of a PIC C program code for line following and obstacle avoiding robot? For it move forward and avoid an obstacle?

Design and simulate a regulated power supply using a bridge rectifier, capacitors, and zener diode ( no integrated circuit). The source voltage is 110 plus or minus 10 Vrms, 60 Hz frequency. The output voltage is as follows (plus or minus 5%) : 4.5 V and 12 V

It has to be done on a breadboard. The rating of the adapter will be 12W and 5% regulation. To protect the circuit include a surge protection and fuse in the circuit design. The total cost of the components of the design should be less than $10. A total number of the elements should be less than 12 for reducing environmental impact. Test it on Multisim and breadboard. Please LIST each item that you used on the breadboard test exactly. I NEED YOU TO PERFORM IT ON A BREADBOARD as well as ON MULTISIM. SHOW the multilsim picture. SHOW ALL CALCULATIIONS NEATLY! DO NOT WRITE IN PEN OR CURSIVE! THANK YOU!

Vocabulary: write the definition of the following words capital letters and give a synonymous for each word, then use the each word in a sentence. (TIRADE, WIZENED, PULCHRITUDINOUS, DISSEMINATE, CLEAVE)

Draw the block diagram of a phase locked loop and discuss the operating principle of it

   Explain how P and N doping can be used to create a device that will only allow a flow of current in one direction. Include in your answer a description the movement of charge carriers when a forward or reverse bias are applied across the device.

Question 2: sensor Char, medaling (17 pts)

Q2: Experimental data’s for relative temperature sensors

Table 1	T(C )	30	40		50	60	70
	R( ohm)	111.4658		115.6045	119.1927	123.3417	127.3224

Table 2	T(C )	30	40		50	60	70
	Time	0		60 sec	120 sec	180	240
	R( ohm)	111.4658		115.6045	119.1927	123.3417	127.3224

               

a) Compute the sensor sensitivity using the data off the table 1?

b) Study the sensor linearity based on the data of the table 1?

c) Discuss the sensor precision based on the data of table 2?

d) Use the data of table 2 to explain the different between random and systematic errors?  

For a general second order control system. On a complex plane graph, with real and imaginary axes, show the region where the roots of a stable second order control system must lie in order to satisfy the following performance conditions:

• Settling time between 0.4 and 0.8 seconds
• Peak overshoot below 5%
• Frequency of oscillation below 8 rad/sec                                                       

** My system is RTD

Question 4: System Installation and Testing

Describe how you would install your system to minimize environmental effects on the sensor operation

Discuss the main error sources (not types: system & random) that would affect your system measurement accuracy.

Describe how you would test and calibrate the measurement system designed. Show details for one sensor to verify operation according to specifications

In the MATLAB environment, display an image of a breast mammogram from the MAMMO database. Apply gray-level scaling, histogram equalization, and an LOG enhancement mask for image enhancement as given below. Compare the enhanced images to original image qualitatively.

LOG enhancement mask to be convolved with the image:

- 1 -1 -1
- 1 9 - 1
-1 -1 -1

MAMMO database:

http://peipa.essex.ac.uk/pix/mias/

1. A given open loop room heating system has a gain of 1.2 and a time constant of 15 seconds. Derive the transfer function of the system in Laplace domain.

2. A closed loop proportional controller was implemented for the system described in Task 1 Q1 above to reduce the time constant to 10 seconds.

a. Draw the block diagram of the system, assuming that the error signal is the difference between the set and actual measured room temperatures.

b. Calculate the gain value (K) of the proportional control action that achieve the above response.

c. Derive the overall closed-loop transfer function in Laplace domain.

analyze the performance of a gasoline engine at various loads based on data given and to determine the torque curve, power curve and performance parameters of BMEP, volumetric efficiency, and Air/fuel ratio, plotting the data vs RPM. Making three graphs: one graphing Torque and Power.

Also address t

a. How do the torque curve and power curve compare (max values @ same RPM)?

b. Is volumetric efficiency constant, or varying with RPM..what is trend?

c. Is BMEP a constant? Does it compare more with torque or power output?

Board Time	Absorber RPM-C	Torque	Barometer	Air Temp.	Air Flow	Air Flow
sec	RPM	lb-ft	PSI	F	Data	CFM
0.015	2172	53.876	14.21	64	345.86	34.59
0.030	2177	53.896	14.21	64	347.65	34.77
0.050	2180	54.011	14.21	64	342.63	34.26
0.070	2174	53.744	14.21	64	343.56	34.36
0.090	2182	53.595	14.21	64	349.31	34.93
0.110	2170	53.879	14.21	64	342.84	34.28
0.131	2174	53.754	14.21	64	344.96	34.50
0.151	2192	53.859	14.21	64	349.31	34.93
0.171	2178	53.808	14.21	64	344.01	34.40
0.188	2183	53.785	14.21	64	346.86	34.69
0.206	2182	53.872	14.21	64	344.62	34.46
0.226	2167	53.781	14.21	64	342.23	34.22
0.246	2174	53.714	14.21	64	347.26	34.73
0.266	2166	53.933	14.21	64	341.47	34.15
0.286	2160	53.659	14.21	64	343.18	34.32
0.306	2168	53.771	14.21	64	348.12	34.81
0.326	2165	54.028	14.21	64	342.30	34.23
0.340	2169	53.568	14.21	64	345.69	34.57
0.356	2175	53.612	14.21	64	346.64	34.66
0.376	2162	53.832	14.21	64	340.82	34.08
0.396	2166	53.487	14.21	64	345.96	34.60
0.416	2179	53.561	14.21	64	347.77	34.78
0.436	2166	53.490	14.21	64	342.03	34.20
0.456	2173	53.315	14.21	64	348.22	34.82
0.476	2171	53.440	14.21	64	342.23	34.22
0.492	2164	53.291	14.21	64	344.51	34.45
0.511	2171	53.183	14.21	64	346.14	34.61
0.531	2171	53.287	14.21	64	341.15	34.11
0.551	2165	52.919	14.21	64	343.62	34.36
0.571	2173	53.017	14.21	64	348.34	34.83