[USRP-users] Re: How to prepare I/Q sample for tx_streamer

2021-08-18 Thread ?? WANG Cui
Thanks, will read it. From: Marcus D. Leech Sent: Thursday, August 19, 2021 11:45 AM To: ?? WANG Cui ; usrp-users@lists.ettus.com Subject: Re: [USRP-users] Re: How to prepare I/Q sample for tx_streamer On 2021-08-18 11:02 p.m., ?? WANG Cui wrote: Hi Marcus, Thanks for the explanation, so I have

[USRP-users] Re: How to prepare I/Q sample for tx_streamer

2021-08-18 Thread Marcus D. Leech
On 2021-08-18 11:02 p.m., ?? WANG Cui wrote: Hi Marcus, Thanks for the explanation, so I have to prepare the I/Q samples in my program. Furthermore, can I understand the send() function will multiplex/transform the I/Q samples to final REAL baseband waveform samples. Then the USRP hardware

[USRP-users] Re: UHD 4.1 on E320

2021-08-18 Thread Ofer Saferman
Hello Jonathon, Thank you for your suggestion. I don't really care which UHD version I am using. I was looking for the shortest path to an FPGA image that already has the replay block implemented so that I don't have to rebuild the FPGA image. Can you suggest where I might find an FPGA image for E

[USRP-users] Re: How to prepare I/Q sample for tx_streamer

2021-08-18 Thread ?? WANG Cui
Hi Marcus, Thanks for the explanation, so I have to prepare the I/Q samples in my program. Furthermore, can I understand the send() function will multiplex/transform the I/Q samples to final REAL baseband waveform samples. Then the USRP hardware simply multiply amplitude of each REAL sample to th

[USRP-users] Re: How to prepare I/Q sample for tx_streamer

2021-08-18 Thread Marcus D. Leech
On 2021-08-18 10:31 p.m., ?? WANG Cui wrote: Hi, Maybe I am asking a newbie question. When use tx_streamer::send() function to send signal, the required format is I/Q samples (say otw_format = sc16). I understand should provide I/Q samples buffer in arguments. I am wondering for the I/Q sa

[USRP-users] How to prepare I/Q sample for tx_streamer

2021-08-18 Thread ?? WANG Cui
Hi, Maybe I am asking a newbie question. When use tx_streamer::send() function to send signal, the required format is I/Q samples (say otw_format = sc16). I understand should provide I/Q samples buffer in arguments. I am wondering for the I/Q samples, should I provide binary values buffer (e.g.

[USRP-users] USRP scheduling multiple receive with multiple time_spec without waiting for the rx_streamer.recv blocking call to return

2021-08-18 Thread Sunny Sam
Hello, I want to be able to schedule multiple timed receives without waiting for the rx_streamer blocking call to schedule the next receive. When the time difference between two consecutive rx_streamer->recv() calls is below around 400 microseconds, the time_spec for the second call sometimes wil