The program performs alpha seeding within LIBSVM Solvers. Please refer to:
D. DeCoste and K. Wagstaff, "Alpha Seeding for Support VECTOR Machines for the meaning of alpha seeding".
Rotating shafts experience a an elliptical motion called whirl. It is important to decompose this motion into a forward and backward whil orbits. The current function makes use of two sensors to generate a bi-directional spectrogram. The method can be extended to any time-frequency distribution
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％ compute the forward/backward Campbell/specgtrogram
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％ INPUT:
％ y (n x 2) each column is measured from a different sensor
％ ///////
％ __
％ |s1| y(:,1)
％ |__|
％ __
％ / \ ________|/
％ | | | s2 |/ y(:,2)
％ \____/ --------|/
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％ Fs Sampling frequnecy
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％ OUTPUT:
％ B spectrogram/Campbel diagram
％ x x-axis coordinate VECTOR (time or Speed)
％ y y-axis coordinate VECTOR (frequency [Hz])
工程計算MATLAB code to calculate the reorthogonalized sine tapers
input: N = the length of the time series data to be tapered
p = the number of tapers requested
I = the gap structure a VECTOR of length N
I(t) = 1 if there is data at time t, t=1, ..., N
I(t) = 0 if there is a gap at time t
output: X = N-by-p VECTOR of the reorthogonalized sine taper
PIECEWISE_EVAL: evaluates a piecewise function of x
usage: y = PIECEWISE_EVAL(x,breakpoints,funs)
arguments (input)
x - VECTOR or array of points to evaluate though the function
breakpoints - list of n breakpoints, -inf and +inf are implicitly
MODE_Switch1Processing multi-interrupt request needs to set the priority of these interrupt requests.
The IRQ flags of the 7 interrupt are controlled by the interrupt event occurring. But the
IRQ flag set doesn t mean the system to execute the interrupt VECTOR. The IRQ flags can be
triggered by the events without interrupt enable. Just only any the event occurs and the
IRQ will be logic "1".
The objective of this projectis to design, model and simulate an autocorrelation
generator circuit using 4-bit LFSR. the register and LFSR will used D flip-flop and some
gates. By the autocorrelation concept, there should be 2 same length VECTORs, for calculating
the autocorrelation , we have to design the register for storing the original VECTOR and the
shifter for make time delay.
