【正文】 lity of the system.According to the above analysis of the monitoring system for monitoring signal and modulation circuit, design of the nursing child son/redundant circuit switching circuit, the event of a failure regulate circuit and redundant circuit switching process is as follows： （14）W (t) is the output of the hysteresis that w (t) is equal to zero, then the system is not stable, because for any x. the simulation, using the generalized RBF neural network for modeling of inverse hysteresis control signal for r = t and the output of the neural network inverse model for v (t), as shown in figure 3, the model by the neural network inverse hysteresis system under the action of single output for 1 w (t), as shown in figure can be seen from the figure 3 and figure 4, greatly weakened, hysteresis andhysteresis phenomenon basically of PID controller is: p = 70 K, K (I) = K d = Bang control rule is: A = , K B = 50, Sp and Sp 1 2 are and figure 5 is not plus Bang Bang control simulation results, namely for the NPID control, figure 6, 7, 8, and Bang Bang control after NBPID control simulation results.4 conclusionHas good characteristics through the use of generalized RBF neural network, direct inverse model of hysteresis system modeling, and then use the inverse model of the implementation of feedforward control, can greatly reduce the hysteresis joining Bang Bang control, can effectively control can be seen from the simulation results, based on feedforward control plus Bang Bang control of PID control, the hysteresis system can be effectively method can also be extended to other types of hysteresis control system.References:[ 1] Hamdan M, Gao Z Q. A novel PID controller fo r pneumat icproportio nal valv es with hyster esis [ J ] . IEEE, 2000, 2:1198 1201.[ 2] Zhao Hongwei, etc. Piezoelectric ceramic actuator in the application of flexible manipulator robot research [J]. Journal of piezoelectric and acoustics, 2000, 22 (3) : 173176.[ 3] Choi G S, Kim H S, Cho i G H. A study on position controlof piezoelectric acuators [ A] . ISIE’ 97 [ C] . Portug al,1997.[ 4] Tao G, Kokotovic P V. Adaptive contr ol of plants w ith unknow n hysteresis [ J] . IEEE Tr ans. Autom. Contr. 1995,40( 2) : 200 212.[ 5] SU C Y, Stepanenko Y, Svoboda J, et al. Robust adaptive contro l of a class of nonlinear systems [ J] . IEEE T ran. . Con. 2000, 45( 12) : 2427 2432.[ 6] Cruz Her nndez J M, Hayward V. Phase control approach to hyster esis reduction [ J] . IEEE Tran. on Contr . . 2001, 9( 1) : 17 26.[ 7] Hwang C L, Jan C, Chen Y H. Piezomechanics using intelli
gent variable structure control [ J] . IEEE Tran. o n Industrial Electo nics. 2001, 48( 1) : 47 59.[ 8] Han J M. T. A. Adriaens. Willem L. de Koning , ReinderBanning. Modeling piezo electric actuators [ J ] . IEEE/ASME Tran. Mech. 2000, 5( 4) : 331 341.[ 9] wang yong ji stuff. Neural network control [M]. Machinery industry press,[ 10] Hay kin S. Neur al Networks[ M] . Prentice Hall I nc. 1999.航空發(fā)動機狀態(tài)監(jiān)測系統(tǒng)設計研究康文雄、李華聰、楊勇柯( 1. 華南理工大學, 廣東 廣州510640。t create any problems for digital signal, however, on the choice of design and physical ponents is difficult to guarantee the analog channel signal input and output equals the absolute, for analog signal data acquisition system of the main source of error is the system error, so the data must be taken into account the error and error correction to improve the accuracy of the data, apparently, error correction is mainly in view of the analog channel is conditioning part in use after period of time there is a deviation, error characteristics of the analog channel may over time slowly changing, digital channel and analog channel in the system is more, the number of regular manual measurement of the integrity of each channel and channel characteristics is impossible, so a selfchecking system is designed to meet this requirement, the system of selfinspection system consists of two functions: testing the correctness of the regulate channel。s upper machine and lower machine USES the microputer, and selects the maturity of the A/D conversion board and digital I/O board to collect signals, and designed the signal disposal circuit of signal isolation, filtering and amplification processing, transformation into A standard used to develop ways to meet the system to the working environment temperature, humidity, vibration resis