No profile info found for bmcgee22

Re: Fixed point exponentiation

Reply posted 1 year ago (07/03/2019)
Yes, I think you can scale the cordic operations to have the ln(2) scaling built in getting the 2^x directly (I needed e^x, so didn't work on that optimization). ...

Re: Fixed point exponentiation

Reply posted 1 year ago (07/02/2019)
Not knowing the target platform and design constraints, a polynomial and shift operation like you suggest might very well be the best solution, that is a method...

Re: Fixed point exponentiation

Reply posted 1 year ago (07/02/2019)
You could use the Hyperbolic Cordic algorithm to compute e^x, then use the identity of 2^x = e^(x*ln(2)).Brian

Re: Frequency multiplication in the digital domain

Reply posted 3 years ago (02/24/2017)
To multiply a complex tone's frequency, you can convert the tone to a phase/amplitude format using CORDIC or some other technique, multiply the phase by the frequency...

Re: Measuring Allan Variance of atomic clock

Reply posted 3 years ago (02/21/2017)
So, I was wondering if I could have time base C be the ADC clock and just measure A and B through the ADC.  It seems like the direct calculation of the Allan Variance...

Re: Measuring Allan Variance of atomic clock

Reply posted 3 years ago (02/20/2017)
Since we are dealing with atomic clocks, the three sources will have comparable variances.  In my research into this problem, it sounded to me like if you were...

Re: Measuring Allan Variance of atomic clock

Reply posted 3 years ago (02/20/2017)
The signals are sinusoidal, so the idea of using an ADC was to try to be able to get the phase measured as accurately as possible and be able to do some signal procesing...

Measuring Allan Variance of atomic clock

New thread started 3 years ago
I need to measure the Allan Variance of 2-3 atomic clocks for a remote application, so can't use the traditional test equipment.  We need to collect the data over...

Use this form to contact bmcgee22

Before you can contact a member of the *Related Sites:

  • You must be logged in (register here)
  • You must confirm you email address