Re: [Discuss-gnuradio] 802.15.4 Frame sync confusion

2017-10-19 Thread Bastian Bloessl
Hi, On 10/19/2017 09:00 AM, Sumit Kumar wrote: Yes but even to get the chip sequences, which are nothing but bits, the incoming complex samples have to be decoded i.e. OQPSK demodulation. I saw MATLAB implementation by Rice University as well in the latest release of MATLAB 2017b (they have

Re: [Discuss-gnuradio] 802.15.4 Frame sync confusion

2017-10-18 Thread Bastian Bloessl
Hi, On 10/18/2017 01:24 PM, sumit kumar wrote: Hi, If my understanding is correct, most of the 802.15.4 receiver implementations perform frame synchronization i.e. find the start of the frame using the preambles which are nothing but 8 zeros(each of which is further converted to 32 bit

[Discuss-gnuradio] 802.15.4 Frame sync confusion

2017-10-18 Thread sumit kumar
Hi, If my understanding is correct, most of the 802.15.4 receiver implementations perform frame synchronization i.e. find the start of the frame using the preambles which are nothing but 8 zeros(each of which is further converted to 32 bit chip). This is done after the OQPSK symbols (complex