According to the measurement principle of the traditional interferometer,a narrowband signal model is established and used,however,for wideband signals or multiple signals,this model is invalid.For the problems of dir...According to the measurement principle of the traditional interferometer,a narrowband signal model is established and used,however,for wideband signals or multiple signals,this model is invalid.For the problems of direction finding with interferometer for wideband signals and multiple signals scene,a frequency domain phase interferometer is proposed and the concrete implementation scheme is given.The proposed method computes the phase difference in frequency domain,and finds multi-target results with judging the spectrum amplitude changing,and uses the frequency phase difference to compute the arrival angle.Theoretical analysis and simulation results show that the proposed method effectively solves the problem of the angle estimation with phase interferometer for wideband signals,and has good performance in multiple signals scene with nonoverlapping spectrum or partially overlapping.In addition,the wider the signal bandwidth,the better direction finding performance of this algorithm.展开更多
At present, unified and effective treatment for hypertension with insomnia is still lacking, traditional Chinese medicine (TCM) nursing technology can improve insomnia symptoms, reduce blood pressure, alleviate fatigu...At present, unified and effective treatment for hypertension with insomnia is still lacking, traditional Chinese medicine (TCM) nursing technology can improve insomnia symptoms, reduce blood pressure, alleviate fatigue, improve anxiety, depression, improve the quality of life for patients with hypertension and insomnia. There is not only the application of the single TCM nursing technology, such as acupoint massage, acupoint application, ear acupoint pressure beans and so on, but also the application of two or a variety of TCM nursing techniques in hypertension with insomnia. In this article, the results of TCM nursing technology on hypertension with insomnia in recent years are reviewed in order to provide reference for the treatment of hypertensive with insomnia.展开更多
文摘According to the measurement principle of the traditional interferometer,a narrowband signal model is established and used,however,for wideband signals or multiple signals,this model is invalid.For the problems of direction finding with interferometer for wideband signals and multiple signals scene,a frequency domain phase interferometer is proposed and the concrete implementation scheme is given.The proposed method computes the phase difference in frequency domain,and finds multi-target results with judging the spectrum amplitude changing,and uses the frequency phase difference to compute the arrival angle.Theoretical analysis and simulation results show that the proposed method effectively solves the problem of the angle estimation with phase interferometer for wideband signals,and has good performance in multiple signals scene with nonoverlapping spectrum or partially overlapping.In addition,the wider the signal bandwidth,the better direction finding performance of this algorithm.
文摘At present, unified and effective treatment for hypertension with insomnia is still lacking, traditional Chinese medicine (TCM) nursing technology can improve insomnia symptoms, reduce blood pressure, alleviate fatigue, improve anxiety, depression, improve the quality of life for patients with hypertension and insomnia. There is not only the application of the single TCM nursing technology, such as acupoint massage, acupoint application, ear acupoint pressure beans and so on, but also the application of two or a variety of TCM nursing techniques in hypertension with insomnia. In this article, the results of TCM nursing technology on hypertension with insomnia in recent years are reviewed in order to provide reference for the treatment of hypertensive with insomnia.
