A 94 GHz Pulse Doppler Solid-State Millimeter-Wave Cloud Radar
Lee-Yaw Lin
Round 1
Reviewer 1 Report
I am very interested in reading the manuscript. A good study about millimeter-wave cloud radar system. I think a lot of changes are needed.
1.Line 17-19:As you mentioned that MMCR has proven to be invaluable for observing non-precipitating and weakly precipitating clouds. The word “clouds”is missing? Please write the sentence clearly.
2.Line 19-21: “MMCR offers higher spatial and temporal resolution than weather radar and better penetration than lidar, making it a better tool for cloud vertical structure (CVS) sensing.” The sentence is too long.Please rewrite the sentence short and clear. Otherwise, please check the English grammar throughout the manuscript.
3.Line 21: Please pay attention to the word “MMCR”, singular or plural? The writings should be kept the same throughout the manuscript.
4.Line 26:The word “Nowdays” should be rewrited as “nowdays”. Please check the English grammar.
5.Line 27-30: “They can be broadly classified into one of two types:
pulse Doppler (PD) radar with a traveling wave tube amplifier (TWTA) or frequency- modulated continuous wave (FMCW) radar with a solid-state power amplifier (SSPA) and two antennas.” Please make the sentence short and clear.
6.Line 30-31: Please make sure the abbreviations are necessary. Too may abbreviations.
7.Line 42-44:“In order to address the deficiencies of TWTA PD and FMCW MMCR systems, such as size, power demand, reliability, etc., our team developed a ground-based PD MMCR called TianJian II (TJ-II) with a single antenna and SSPA, as shown in Fig.1.” Please rewrite the sentence.It’s Chinglish.
8.Line 90-91: The writing of “W-band” should be kept the same.
9.Line 141-142: The writing of the sentence makes us confused. Please rewrite it. The “processing before the Doppler power spectrum” can be rewrited as “pre-processing”.Then, you can exhibit the “pre-processing” and “processing”,respectively.
10.Line 163-164: In Figure 6, the unit of “ velocity” (m/s) should be rewrite as “ m s-1”.
11.Line 238-239:In Figure 7, the unit of “ velocity” (m/s) should be rewrite as “ m s-1”.
12.Line 286: Add a space symbol between “5” and “km”. Please check the writing throughout the manuscript.
Check the English writing throughout the manuscript.
Author Response
Please see the attachment.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
This manuscript shows the design of 94 GHz Pulse Doppler Solid-state Millimeter-wave Cloud Radar. The background knowledge was introduced very clearly, including the design details, algorithm principles, test results, and other details of the radar, making it easy for readers to understand at a glance. The language of the manuscript has also been carefully considered. This radar has reached the standard of commercialization and should have good results in practical meteorological observation operations in the future. This manuscript can be published on the Remote Sensing. Here are some suggestions.
General comments
a. In table 1, 3dB beam width should have a unit.
b. Can a combination antenna module be used to solve the blind spot problem of continuous wave radar？
c. From a scientific perspective, this article aimed more on engineering. It is recommended that the author supply some atmospheric scientific phenomena observed using this radar, or provide some usage scenarios for this radar.
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
Reviewer 3 Report
General comment
The main disadvantage of this work is that it lacks experimental calibration and validation results. Authors describe in detail how they developed the new radar system but they present only the results of a short time period real cloud observation without presenting data from other sources so the new radar system observations can be rudimentary evaluated.
To my opinion, even for a technical note this information is important but I believe Editor should make the final decision about the publication of this manuscript.
Specific comments
Table 1. Vertical sampling is 15 m or km?
Fig. 9 (a) caption: “power” not “power”
Author Response
Please see the attachment
Author Response File: Author Response.pdf
Reviewer 4 Report
This manuscript describes the system design of the 94 GHz pulse doppler solid-state millimeter-wave cloud radar and proposes a new method for noise level estimation method. The structure of the paper is well-organized and the topic fits the scope of the journal. The reviewer suggests that this article can be accepted after minor revision. Some comments are listed below.
1. The paper contains too many abbreviations which makes it harder to read.
2. There are a large number of undefined abbreviations that should be clarified or removed, such as MMIC, FPGA, RX, CaN, ……etc.
3. Moderate editing of the English language is necessary for the manuscript.
Moderate editing of the English language is required.
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
