... dB -5 0 -1 00 -2 0 dB -1 50 -0 .2 -9 0 Phase (deg) -0 .4 -0 .6 -0 .8 -1 -1 80 -2 70 -3 60 -1 .5 -1 -0 .5 0.5 -2 10 Real Axis -1 10 10 10 10 Frequency (rad/sec) Hỡnh Biu Nyquist-c tớnh tn s-biờn , pha Tp Khoa ... vũng quay ng c theo thi gian thay i t ngt lng cp nhiờn liu Nyquist Diagram Bode Diagram dB dB dB -2 dB -4 dB 0.8 -6 dB Magnitude (dB) dB 0.6 Imaginary Axis 0.4 10 dB 0.2 -1 0 dB 20 dB -5 0 -1 00 -2 0 ... vũng quay c khớ-thy lc phc nht cỏc b iu chnh vũng quay c khớ thy lc ca hóng Woodward, vỡ th thut toỏn bi bỏo ny cú th s dng cho cỏc h thng t ng iu chnh vũng quay khỏc s dung b iu chnh vũng quay...