Implementing single-scale wavelet transform processor with magnetostatic surface wave device

Abstract

When the envelope of the conducting strips for the input transducer of magnetostatic surface wave (MSSW) device is designed according to the wavelet-function envelope, the impulse-response function of the input transducer for MSSW device is equal to the wavelet function, so that single-scale wavelet-transform processor of MSSW type is fabricated. First, according to the envelope function of the wavelet, the length function of the conducting strips is defined, then, the lengths of the conducting strips can be calculated from the length function of the conducting strips, finally, the input transducer can be designed according to the lengths and widths for the conducting strips. The compensation method of the insertion loss for single-scale wavelet transform processor of MSSW type is also given in the paper. When the output end of single-scale wavelet transform processor of MSSW type is connected to the amplifier, its insertion loss can be compensated. wavelet transform processor, magnetostatic surface wave (MSSW), envelope of the conducing strips, transducer Citation: Lu W K, Zhu C C, Kuang L, et al. Implementing single-scale wavelet transform processor with magnetostatic surface wave device.

Compensated SAW Yarn Tension Sensor

“…In addition, to suppress the side lobes of SAW oscillator, an electrode-overlap envelope is weighted to the input transducer according to the cosine square function as shown in Fig. 2 [21], [22]. The fabrication layout is designed by L-Edit8.2, as shown in Fig.…”

“…In addition, the oscillator 1 and oscillator 2 of the SAW yarn tension sensor will be adjacent and work under the same temperature, therefore, T R ∼ = T 0 . Equation (22) can be written as…”

The Method of Logging Curves Fusion Based on Multi-Scale Wavelet Transform

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A novel compensation method of insertion losses for wavelet inverse-transform processors using surface acoustic wave devices

“…In order to solve those problems, various methods with physical devices have been reported. Physical devices such as very large-scale integration (VLSI), 1-3 optical devices, 4, 5 magnetostatic surface wave (MSSW) device, 6,7 and SAW devices [8][9][10][11][12][13][14] have been developed to support the implantation process. In the method of implementation of wavelet transform with SAW devices, Lu et al 8,9 found that, if the electrode-overlap envelope of the input interdigital transducer (IDT) for SAW device is designed according to the envelope function of wavelet function, then the input IDT of SAW device can implement the convolution of f(t) and wavelet function, i.e., wavelet transform.…”