Revistion History

Changes from * Revision (June 2019) to A Revision

• Changed AWR1243 with AWR2243 throughout the documentGo
• Added The data presented in this design guide was obtained using MMWCAS-RF-EVM Revision C, that used the AWR1243P devices. However, the latest MMWCAS-RF-EVM Revision D makes use of the second generation, AWR2243 devices. This AWR2243 solution should be referenced for future designs.Go
• Added MMWCAS-RF-EVM Tools FolderGo
• Changed Detect objects to Shows Detection of objectsGo
• Added (in azimuth plane)Go
• Changed AWR1243 to AWR2243 in the GHZ LO Distribution Block DiagramGo
• Changed 16 RX to 8 RXGo
• Deleted For the MIMO application, to achieve the system performance specified above, the chirp configuration in Table 2 is used.to For the MIMO application, the chirp configuration in Table 2 is used. Go
• Changed (kSPS) to (MSPS)Go
• Added per TXGo
• Changed cross-reference from Table 2 to Table 1Go
• Changed maximum unambiguous velocity of 133 km/h to maximum velocity of +/- 130km/hGo
• Deleted The choice of the chirp periodicity is a trade-off between range resolution and maximum velocity. The velocity resolution is defined by the number of chirps per frame.Go
• Added As mentioned in the previous section, in MIMO mode, 6 antennae are used in azimuth and 3 in elevation. The 3 overlapped azimuth antennae can't be used in MIMO. So, the total of chirps in a MIMO frame is 9 x "Number of chirps per frame per Tx." The Overlapped antennae are used for Vmax extension in TDM MIMO.Go
• Deleted ...to achieve the system performance specified above,Go
• Changed 256 to 128Go
• Changed 256 to 43Go
• Changed 4.4 to 3.5Go
• Changed 133 with +/-130Go
• Deleted ...the number of chirps used in this subframe is equal to the number of different desired steering angles. Each chirp configuration is associated with phase values for the TX array, calculated based on the corresponding desired steering angle...Go
• Changed After each data collection, a binary data file and the corresponding chirp configuration parameters are saved. to After each data collection, a binary data file corresponding to each of the four cascaded devices is saved as well as the corresponding chirp configuration file.Go
• Deleted The details of maximum velocity extension and phase compensation will be discussed in a separate section.Go
• Changed grading to gratingGo
• Changed ...using the AWR2243 four-device to ...using the older generations AWR1243P four-device Go
• Added With the newer generation of the sensor, AWR2243, the RF performance is improved as shown in the AWR2243 data sheetGo
• Deleted Side-by-side Car Detection Resolution – MUSIC AlgorithmGo
• Deleted Manhole Contour Detection, Height Measurement, Single-Device vs. Cascade DevicesGo
• Changed Two corner reflectors were placed approximately 8 m from the AWR2243 radar sensor. 1.5 degrees of azimuth separation was applied to the reflectors and the resulting azimuth resolution was measured. to Two corner reflectors were placed with an angular separation of approximately 1.5 degrees at a distance of 8 m from the mmwave sensorGo
• Changed which is in close alignment to the expected. to which is close to the expected value.Go
• Changed Car at 0 Degrees (Top), 90 Degrees (Middle) and 135 Degrees (Bottom) Orientation and Corresponding Azimuth Range Heatmap to Car at 0 Degrees (Top) Car with Open Door (Bottom) Orientation and Corresponding Azimuth Range HeatmapReplaced image with new imageGo