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Ultra-broadband portable microwave FMCW radars for measuring snow depth, snow water equivalent, and stratigraphy: Practical considerations

Snow Depth Measurements using Ground-Based FMCW Radar Measurements of Dry Snowpacks During December of the 2006-07 NASA CLPX-II

This relatively compact, cheap, simple FMCW radar operates in the spectrum around 5.8-6.0 GHz and is aimed at lowering the barrier to entry for exp…

... FMCW radar platform. Fig. 2. Intermediary frequency signal spectrum. The analog filter removes the low-

The analog filter removes the low-frequency components, improves the SNR, and acts as an antialiasing filter.

Histogram of relative efficiencies for (a) true monostatic configuration. (b) Histogram in the same conditions but with a transverse wind of 100 m/s.

The areas around the crossing ramps show beat frequencies in a FMCW receiver resulting from a FMCW and a CW interferer, respectively.

Illustration of the range migration introduced by an altitude difference. (a) Two targets T 1 and T 2 are at the same position in front of the radar (i.e. ...

The Doppler frequency f d is added or subtracted to the beat frequency introduced by the radar-target distance, depending of the sign of the modulation ...

RMSE (position and velocity) for the second target according to the scenario in Fig. 2 with FMCW radar. The SNR on each node is inversely proportional to ...

Snow Depth Measurements using Ground-Based FMCW Radar Measurements of Dry Snowpacks During December of the 2006-07 NASA CLPX-II

Ultra-broadband portable microwave FMCW radars for measuring snow depth, snow water equivalent, and stratigraphy: Practical considerations

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Simulation of radar spectra obtained with a triangular modulation law. Upslope and downslope spectra are computed in order to estimate simultaneously the ...

Example of simulated FMCW radar signal. Two trihedral metallic corners are located at range 30 m and 40 m, with RSC equal to 1.1 m2 (0.4 dBsm) and 42.9 m2 ...

Illustration of the operating principle of FMCW radars. The transmitted chirp and received chirp are mixed to produce a beat frequency proportional to ...

RMSE (position and velocity) for the first target only according to the scenario in Fig. 2 with 4 FMCW radar. The SNR on each node is inversely proportional ...

00008_psisdg9456_94560B_page_3_2.jpg. The experimental FMCW and SFCW radar-based footprint detection systems described in this ...

Statistical evaluation of lidar relative efficiency for an infinite target: Histograms of relative efficiencies distribution of a monostatic lidar (blue ...

Statistical evaluation of lidar relative efficiency for a finite target: Histograms of relative efficiencies distribution for a monostatic lidar (blue bars) ...

Measurement bias calculated using the averaged measured distance and the position of the linear rail. (a) Range measurement bias calculated as difference ...

Sketch of the proposed system architecture (extended from [12]). Only a BPSK modulator is inserted into the TX path of the radar.

Frequency vs time for a typical FMCW transmitted (solid line) and received (dashed line) waveform. Note that the frequency difference ΔF is constant over ...

Figure 3:The basic idea of chirped radar. By electronically measuring and one can determine the distance to the reflecting object and its radial speed.

Radial velocity introduced by the robot motion. (a) Variation of the radial velocity v r as a function of the antenna rotation θ . (b) Simulation of Doppler ...

Simulation a FFT spectrum analysis. Two targets are located at ranges 59.8 m and 60.2 m in front of the radar. (a) t m = 5.6 ms and Δ f = 200 MHz .

(a) Scenario scheme: Light stratus above the helicopter at 500 m. Power spectral density of the signal coming from (b) positive and (c) negative frequency ...

Introduction ATAP: Advanced Technology and Projects group which is department in google company .they Gesture recognition And Radar ...

(A) Portable FMCW radar mounted on sled, Devon Ice Cap, Nunavut, Canada. Small white box at end of boom (left) contains radar, and blue box contains laptop ...

(a) Power spectral density as a function of angle of the lidar axis, after convolution. The dark horizontal band regions correspond to the blind angles for ...

InnovateFPGA | APJ | AP050 - Compact Short Range FMCW Microwave Radar for Enhanced Vision in Robotics & Vehicles