Abstract: The present application relates to a thermal insulation felt with thermal shock resistance and a preparation method thereof. A thermal insulation felt with thermal shock resistance has a layered structure, and includes a glass fiber layer with filler and a thermal shock-resistant coating, in which the thermal shock-resistant coating is coated on one or two sides of the glass fiber layer with filler. The filler is hollow glass bead or aerogel SiO2. The thermal shock-resistant coating is obtained by coating a thermal shock-resistant coating material on one or two sides of the glass fiber layer with filler and then drying and solidifying. The thermal shock-resistant coating material, based on a weight percentage, includes 10-50% SiO2, 5-60% ZnO, 5-40% Al2O3, 5-15% poly tetra fluoroethylene, 5-35% silane coupling agent and 15-50% phosphate.

Abstract: The present disclosure provides a method for identifying a carrier motion mode based on a time-domain differential characteristic. Firstly, a difference operation is performed on data to obtain a difference sequence, and then sign, progressive multiplication, and accumulation operations are performed on the difference sequence, and finally thresholds are set to determine an accumulation sequence, so as to obtain a carrier motion mode. All operations involved in this method are performed in time domain, and the method has the advantages of simple algorithm, good real-time performance, accurate determination, and strong robustness.