{'fraction_non_alphanumeric': 0.02012578616352201, 'fraction_numerical': 0.0, 'mean_word_length': 4.984962406015038, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
On Sampled-Data Observer Design for Nonlinear Systems

Sampled-data observer is an important issue of control theory while most implemented control systems are based on computer control. This paper studies sampled-data observer design for nonlinear systems. Because of the difficulties to get the exact discrete-time model of the nonlinear plant the design is based on the approximate discrete-time model. The continuous-time model of the plant is discretized by Euler's method and the observer feedback item is designed in discrete-time. Then the observer is constructed of the feedback item and a more precise approximation. Theory analysis gives the conditions under which the observer will work well for the unknown exact discrete-time model. The theory is illustrated by simulation results.