Re: [Discuss-gnuradio] Variable in Delay block
Hi Ron,
Thank you! Managed to get it working. By any chance, you know how to change the
"delay" using python over time? I tried to use QT Entry GUI shown in the guided
tutorial, instead of if else function I tried doing for loop
def set_delay_amt(self, delay_amt):
c = 0
for a in range(0,5000):
for b in range(0,6000):
if b == 5999:
c = c + 1
t = c*0.001
delay_amt =
int(0.04*((3500*(t-2.5))**2 + 227322562.9)**(1/2.0)
self.delay_amt = delay_amt
Qt.QMetaObject.invokeMethod(self._delay_amt_line_edit,
"setText", Qt.Q_ARG("QString", str(self.delay_amt)))
Self.blocks_delay_0.set_dly(self.delay_amt)
I've tested the code for the one listed below and tested it out using python
shell, got the values I want.
c = 0
for a in range(0,5000):
for b in range(0,6000):
if b == 5999:
c = c + 1
t = c*0.001
delay_amt =
int(0.04*((3500*(t-2.5))**2 + 227322562.9)**(1/2.0)
Just that I not sure where to place it in the generated file. Thank you!
From: Discuss-gnuradio
[mailto:discuss-gnuradio-bounces+yjinkuan=dso.org...@gnu.org] On Behalf Of Ron
Economos
Sent: Thursday, 31 May 2018 11:16 AM
To: discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] Variable in Delay block
You should also change the Trigger Mode in the QT Time sink to Normal.
Ron
On 05/30/2018 08:05 PM, Ron Economos wrote:
It's just a scaling issue. One sample of delay at 32 ksps is much longer in
time than one sample of delay at 10 Msps. Try the following changes.
1) Change the number of points in the QT GUI Time sink to 32768.
2) In the QT GUI range block, change the Stop value to 1 and the Step value
to 100.
Ron
On 05/30/2018 07:39 PM, Yeo Jin Kuang Alvin (IA) wrote:
Hi Ron,
Thanks! It works for me too, but when I increase the samp_rate to 10e6, can't
see the delay.
From: Discuss-gnuradio
[mailto:discuss-gnuradio-bounces+yjinkuan=dso.org...@gnu.org] On Behalf Of Ron
Economos
Sent: Monday, 28 May 2018 6:08 PM
To: discuss-gnuradio@gnu.org<mailto:discuss-gnuradio@gnu.org>
Subject: Re: [Discuss-gnuradio] Variable in Delay block
It works here. Here's a small flow graph that I tested the delay block
operation with.
http://www.w6rz.net/delay.grc
Ron
On 05/28/2018 02:33 AM, Yeo Jin Kuang Alvin (IA) wrote:
Hi Ron,
That means the Delay block is able to change as well, but why do I not see the
delay when simulating on the time sink?
Thanks in advanced!
From: Discuss-gnuradio
[mailto:discuss-gnuradio-bounces+yjinkuan=dso.org...@gnu.org] On Behalf Of Ron
Economos
Sent: Monday, 28 May 2018 5:26 PM
To: discuss-gnuradio@gnu.org<mailto:discuss-gnuradio@gnu.org>
Subject: Re: [Discuss-gnuradio] Variable in Delay block
If a block variable can be changed during run time, it will be underlined in
the properties dialog. For example, in the Multiply Const block, the variable
"Constant" can be changed.
[block]
Ron
On 05/28/2018 01:46 AM, Yeo Jin Kuang Alvin (IA) wrote:
Hi all,
Is it possible for me to create a QT GUI Range and put the ID in the Delay of
the delay block? I tried and the graph doesn't change.
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Re: [Discuss-gnuradio] Variable in Delay block
You should also change the Trigger Mode in the QT Time sink to Normal. Ron On 05/30/2018 08:05 PM, Ron Economos wrote: It's just a scaling issue. One sample of delay at 32 ksps is much longer in time than one sample of delay at 10 Msps. Try the following changes. 1) Change the number of points in the QT GUI Time sink to 32768. 2) In the QT GUI range block, change the Stop value to 1 and the Step value to 100. Ron On 05/30/2018 07:39 PM, Yeo Jin Kuang Alvin (IA) wrote: Hi Ron, Thanks! It works for me too, but when I increase the samp_rate to 10e6, can’t see the delay. *From:*Discuss-gnuradio [mailto:discuss-gnuradio-bounces+yjinkuan=dso.org...@gnu.org] *On Behalf Of *Ron Economos *Sent:* Monday, 28 May 2018 6:08 PM *To:* discuss-gnuradio@gnu.org *Subject:* Re: [Discuss-gnuradio] Variable in Delay block It works here. Here's a small flow graph that I tested the delay block operation with. http://www.w6rz.net/delay.grc Ron On 05/28/2018 02:33 AM, Yeo Jin Kuang Alvin (IA) wrote: Hi Ron, That means the Delay block is able to change as well, but why do I not see the delay when simulating on the time sink? Thanks in advanced! *From:*Discuss-gnuradio [mailto:discuss-gnuradio-bounces+yjinkuan=dso.org...@gnu.org] *On Behalf Of *Ron Economos *Sent:* Monday, 28 May 2018 5:26 PM *To:* discuss-gnuradio@gnu.org <mailto:discuss-gnuradio@gnu.org> *Subject:* Re: [Discuss-gnuradio] Variable in Delay block If a block variable can be changed during run time, it will be underlined in the properties dialog. For example, in the Multiply Const block, the variable "Constant" can be changed. block Ron On 05/28/2018 01:46 AM, Yeo Jin Kuang Alvin (IA) wrote: Hi all, Is it possible for me to create a QT GUI Range and put the ID in the Delay of the delay block? I tried and the graph doesn’t change. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Variable in Delay block
It's just a scaling issue. One sample of delay at 32 ksps is much longer in time than one sample of delay at 10 Msps. Try the following changes. 1) Change the number of points in the QT GUI Time sink to 32768. 2) In the QT GUI range block, change the Stop value to 1 and the Step value to 100. Ron On 05/30/2018 07:39 PM, Yeo Jin Kuang Alvin (IA) wrote: Hi Ron, Thanks! It works for me too, but when I increase the samp_rate to 10e6, can’t see the delay. *From:*Discuss-gnuradio [mailto:discuss-gnuradio-bounces+yjinkuan=dso.org...@gnu.org] *On Behalf Of *Ron Economos *Sent:* Monday, 28 May 2018 6:08 PM *To:* discuss-gnuradio@gnu.org *Subject:* Re: [Discuss-gnuradio] Variable in Delay block It works here. Here's a small flow graph that I tested the delay block operation with. http://www.w6rz.net/delay.grc Ron On 05/28/2018 02:33 AM, Yeo Jin Kuang Alvin (IA) wrote: Hi Ron, That means the Delay block is able to change as well, but why do I not see the delay when simulating on the time sink? Thanks in advanced! *From:*Discuss-gnuradio [mailto:discuss-gnuradio-bounces+yjinkuan=dso.org...@gnu.org] *On Behalf Of *Ron Economos *Sent:* Monday, 28 May 2018 5:26 PM *To:* discuss-gnuradio@gnu.org <mailto:discuss-gnuradio@gnu.org> *Subject:* Re: [Discuss-gnuradio] Variable in Delay block If a block variable can be changed during run time, it will be underlined in the properties dialog. For example, in the Multiply Const block, the variable "Constant" can be changed. block Ron On 05/28/2018 01:46 AM, Yeo Jin Kuang Alvin (IA) wrote: Hi all, Is it possible for me to create a QT GUI Range and put the ID in the Delay of the delay block? I tried and the graph doesn’t change. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Variable in Delay block
Hi Ron, Thanks! It works for me too, but when I increase the samp_rate to 10e6, can't see the delay. From: Discuss-gnuradio [mailto:discuss-gnuradio-bounces+yjinkuan=dso.org...@gnu.org] On Behalf Of Ron Economos Sent: Monday, 28 May 2018 6:08 PM To: discuss-gnuradio@gnu.org Subject: Re: [Discuss-gnuradio] Variable in Delay block It works here. Here's a small flow graph that I tested the delay block operation with. http://www.w6rz.net/delay.grc Ron On 05/28/2018 02:33 AM, Yeo Jin Kuang Alvin (IA) wrote: Hi Ron, That means the Delay block is able to change as well, but why do I not see the delay when simulating on the time sink? Thanks in advanced! From: Discuss-gnuradio [mailto:discuss-gnuradio-bounces+yjinkuan=dso.org...@gnu.org] On Behalf Of Ron Economos Sent: Monday, 28 May 2018 5:26 PM To: discuss-gnuradio@gnu.org<mailto:discuss-gnuradio@gnu.org> Subject: Re: [Discuss-gnuradio] Variable in Delay block If a block variable can be changed during run time, it will be underlined in the properties dialog. For example, in the Multiply Const block, the variable "Constant" can be changed. [block] Ron On 05/28/2018 01:46 AM, Yeo Jin Kuang Alvin (IA) wrote: Hi all, Is it possible for me to create a QT GUI Range and put the ID in the Delay of the delay block? I tried and the graph doesn't change. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Variable in Delay block
It works here. Here's a small flow graph that I tested the delay block operation with. http://www.w6rz.net/delay.grc Ron On 05/28/2018 02:33 AM, Yeo Jin Kuang Alvin (IA) wrote: Hi Ron, That means the Delay block is able to change as well, but why do I not see the delay when simulating on the time sink? Thanks in advanced! *From:*Discuss-gnuradio [mailto:discuss-gnuradio-bounces+yjinkuan=dso.org...@gnu.org] *On Behalf Of *Ron Economos *Sent:* Monday, 28 May 2018 5:26 PM *To:* discuss-gnuradio@gnu.org *Subject:* Re: [Discuss-gnuradio] Variable in Delay block If a block variable can be changed during run time, it will be underlined in the properties dialog. For example, in the Multiply Const block, the variable "Constant" can be changed. block Ron On 05/28/2018 01:46 AM, Yeo Jin Kuang Alvin (IA) wrote: Hi all, Is it possible for me to create a QT GUI Range and put the ID in the Delay of the delay block? I tried and the graph doesn’t change. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Variable in Delay block
Hi Ron, That means the Delay block is able to change as well, but why do I not see the delay when simulating on the time sink? Thanks in advanced! From: Discuss-gnuradio [mailto:discuss-gnuradio-bounces+yjinkuan=dso.org...@gnu.org] On Behalf Of Ron Economos Sent: Monday, 28 May 2018 5:26 PM To: discuss-gnuradio@gnu.org Subject: Re: [Discuss-gnuradio] Variable in Delay block If a block variable can be changed during run time, it will be underlined in the properties dialog. For example, in the Multiply Const block, the variable "Constant" can be changed. [block] Ron On 05/28/2018 01:46 AM, Yeo Jin Kuang Alvin (IA) wrote: Hi all, Is it possible for me to create a QT GUI Range and put the ID in the Delay of the delay block? I tried and the graph doesn't change. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Variable in Delay block
If a block variable can be changed during run time, it will be underlined in the properties dialog. For example, in the Multiply Const block, the variable "Constant" can be changed. block Ron On 05/28/2018 01:46 AM, Yeo Jin Kuang Alvin (IA) wrote: Hi all, Is it possible for me to create a QT GUI Range and put the ID in the Delay of the delay block? I tried and the graph doesn’t change. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Variable in Delay block
Hi all,
Is it possible for me to create a QT GUI Range and put the ID in the Delay of
the delay block? I tried and the graph doesn't change.
I also tried generating the python file and created a QT GUI Entry, use the ID
in the QT GUI Entry (delay_amt) and edited the code
def set_delay_amt(self, delay_amt):
c = 0
for a in range(0,5000):
for b in range(0,6000):
if b == 5999:
c = c + 1
t = c*0.001
delay_amt =
int(0.04*((3500*(t-2.5))**2 + 227322562.9)**(1/2.0)
self.delay_amt = delay_amt
Qt.QMetaObject.invokeMethod(self._delay_amt_line_edit,
"setText", Qt.Q_ARG("QString", str(self.delay_amt)))
Self.blocks_delay_0.set_dly(self.delay_amt)
I have tested the values in python shell and I've gotten what I wanted. Just
that when I run it, there doesn't seems to be a delay changing with time. I
want to control the delay overtime, to simulate the time take for it to
transmit and reflect back an object when the object is moving for 5 secs. Does
this method works or is there a better way of doing this and how?
Thank you in advanced!
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