PID-controlled PLL for fast frequency-hopped systems

Uyanik H. U., Tarim N.

6th IEEE Dallas Circuits and Systems Workshop (DCAS-07), Texas, Amerika Birleşik Devletleri, 15 - 16 Kasım 2007, ss.117-118 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Texas
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.117-118
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

In this work, a novel aided-acquisition technique based on proportional-integral-derivative (PID) control of a phase-locked loop (PLL) is presented. This is achieved by inserting a control block into the PLL during acquisition where originally the output frequency/phase is controlled by a PI controller. This significantly reduces the settling time of the PLL which is important for certain applications such as WLANs where fast frequency-hopped spread-spectrum methods are used. Simulations show that the proposed structure reduces the settling time by 75%.