Jiajun Zhu

4 Questions 9 Answers 0 Followers

Questions related from Jiajun Zhu

How to determine whether or not the Power amplifier has memory effect, via tests or experiments?

The non-linearity of power amplifier limits the power output efficiency. So, we can use DPD technique to improve it. But we need to know the power amplifier with the memory effect or memory-less....

13 September 2018 5,991 6 View

How do I design a loop filter of DPLL in OFDM system?

Hi all, I am designing a loop filter of DPLL in 802.11ac OFDM system. The DPLL tracking is achieved by pilot symbols inserted into OFDM symbols. Importantly, the coefficients of loop filter...

04 February 2016 9,141 3 View

How can I simulate the algorithm for a IEEE802.11ac PHY layer that can optimally reflect the performance of a real-circuit implementation?

I am working for a semi-conductor company. Now, my assignment is to design IEEE802.11ac PHY layer algorithm. However, the situation of theoretical simulation is very different from that of...

11 May 2015 6,860 6 View

Does anyone know some references about Decision Feedback Equalizer (DFE) ?

I want to design a Decision Feedback Equalizer (DFE) to combat the multipath channel. Does anyone know some references about the principles of Decision Feedback Equalizer (DFE) ? Further, What is...

20 August 2014 5,339 4 View