The On-Chip D-LMS Filter Design Method of Wireless Sensor Node Based on FPGA
المؤلفون المشاركون
Liu, Zepeng
Li, Jian
Li, Maojin
Meng, Ming
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-16، 16ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-05-30
دولة النشر
مصر
عدد الصفحات
16
التخصصات الرئيسية
الملخص EN
In the real-time position technology of underground shallow source, the signal denoising performance of wireless sensor nodes directly determines the location speed and accuracy of underground burst point.
Because of the complexity and randomness of the underground medium and the fact that underground explosion is a nonstationary transient process, the problems of low convergence rate and poor steady-state performance of the filter exist when the existing LMS algorithm is used for signal denoising.
In light of the above concerns, this paper comes up with a signal denoising algorithm and hardware implementation method based on D-LMS (delay-LMS).
Firstly, according to the autocorrelation function characteristic of random signal, using the principle that the autocorrelation function time delay characteristic of narrowband signal such as explosion vibration signal is better than that of wideband random signal such as ground noise, the D-LMS filter algorithm is constructed by introducing the time delay parameter.
Secondly, the selection method of key parameters in D-LMS hardware implementation is analyzed.
Thirdly, the corresponding hardware circuit is designed by FPGA, and the simulation is carried out.
Numerical simulation and experimental verification show that compared with the existing LMS improved algorithm, the D-LMS algorithm proposed in this paper has higher denoising stability and better denoising effect.
Compared with the signal postprocessing method based on the host computer, the signal denoising speed of this method is significantly improved.
This method will provide a powerful theoretical method to solve the problem of high-precision and fast source positioning and provide technical support for the development of high-speed and real-time source positioning instruments.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Li, Jian& Li, Maojin& Meng, Ming& Liu, Zepeng. 2020. The On-Chip D-LMS Filter Design Method of Wireless Sensor Node Based on FPGA. Shock and Vibration،Vol. 2020, no. 2020, pp.1-16.
https://search.emarefa.net/detail/BIM-1209949
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Li, Jian…[et al.]. The On-Chip D-LMS Filter Design Method of Wireless Sensor Node Based on FPGA. Shock and Vibration No. 2020 (2020), pp.1-16.
https://search.emarefa.net/detail/BIM-1209949
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Li, Jian& Li, Maojin& Meng, Ming& Liu, Zepeng. The On-Chip D-LMS Filter Design Method of Wireless Sensor Node Based on FPGA. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-16.
https://search.emarefa.net/detail/BIM-1209949
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1209949
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر