I took the remaining prop to this shop and the owner wrote out a short estimate for a pair of props with a note about the design change. The adjuster accepted this as proof and paid for the pair. My suggestion is to have a reliable shop open up the electronics and inspect for water damage.

To get some smoothness (C1), the natural way is to estimate the partial derivatives at the grid points and adjust a cubic polynomial between two adjacent points in the grid ( Bicubic interpolation ). A evaluations of the cubics at intermediate points are needed.

How can I estimate the right number of losted samples ? - is it (samps_per_buff - N) + samps_per_buff - should I use the meta_data::time_spec to compute the number of losted samples ? does this time_spec already significant even for overflow conditions ? - another method ? Any help is appreciated. thanks. Olivier

The end result was that we could estimate the buffer state of the USRP N200 and and manage control latency. I've made similar modifications in the latest master. This works fine for the N200 case, but breaks the X300 case.

The sampled signal will contain voltage estimates that are *proportional* to the instantaneous voltage as seen at the antenna terminals, but given that there are several stages of (mostly-linear) transforms (gain, mixing, digital and analog filtering transforms), the only way to relate what appears in the sample stream with voltages as seen at the antenna

Hi every body I've created a custom block in xilinx system generator for a psd estimation with an iir filter. Inside system generator I can create a timing analysis (post route) without any problems (worst negativ slack is ~3ns).

There's no hardware remedy to this :( you'll have to circumvent that, possibly by estimating the correct sign in software, if what you're trying to do allows that.

Hello, I observe a spurious signal in the PSD estimates that are obtained using a USRP, which I cannot identify the cause. Could someone help me identifying the cause of this? Plots are shown below. *Hardware*: -USRP N200 r4 + UBX-40 v1 -Agilent FieldFox SA, as the reference.

We have the update on our radar, however I don't have any estimate on when it will be available at this time. [1] - https://wiki.ubuntu.com/Kernel/Support?

For that I have connected TAG DEBUG with OFDM CHANNEL ESTIMATION block which gives me the complex values. As there are 2 RX antennas (2 separate channels) therefore I have 2 CSI values (over 2 TAG DEBUG block). My question therefore is how can I separate these values for each transmit antennas.