Chapter Eighty-Eight: Base Station Transmitters
If Su Province is asked to list the ten most incredible design plans he has ever received, then the transceiver base station of the past few days is definitely one.
The design requirements of the base station are: to be able to receive the signal of the Changguang telemetry satellite on the moon, and to transmit the audio file to the Changguang satellite losslessly, of course, the file is not too big, at best 10MB of things, if the flux is enough, it is more than ten seconds. But the problem is no longer on this side, nor on funding, but on time.
When Nie Peng found him, he left him 10 days, and these 10 days still needed to be successful from the design to the initial trial, including the core and shell, which would kill him.
But if you want to die, who told him to brag about it at that time, and insisted that he could build a launch station with a room of equipment.
So these days, he is almost living in the factory, and it can almost be said that he is busy in the dark. However, what comforted him was that his little boss, Comrade Nie Peng, was almost in the same factory as him: when he came in the morning, Nie Peng was already fiddling with equipment in the laboratory. At noon, everyone ordered takeout together, and several people chatted with each other about their work progress. And when it was time to get off work, no one was stuck and went home. This surprised Su Xing, but when he got to know it deeply, this surprise turned into admiration. For a while, Duanxing left him an impression that became a thriving alliance of dreamers.
The communication between several people after work can be regarded as all-encompassing, although the industry belongs to different industries, but the mentality of doing their best is the same, which really makes Su Province feel the determination of this group of younger brothers and sisters---- when Di Zhexiao has not returned, he is the oldest. In view of this, the desire to lead by example has become stronger, and even completed the task ahead of schedule in one go.
Nie Peng, Jia Ying, and Di's father, who rushed back from Hong Kong, were sitting in the office at the moment, looking at a device standing on the ground, which looked a bit like a miniature version of the iron tree, except that some cylindrical metal columns were inserted at the top, and the position of the lower leaf was replaced with a metal reflector.
"This is the 'expedited version' of the Tonglian base station, let me tell you how it works." Sioux stood in front of a whiteboard with a pen in his hand.
"First of all, let's compare LRO with Changguang." Su Xingxing said, drawing two circles on the whiteboard, one up and one down, representing two satellites respectively.
"The advantage of LRO lies in his 'eyes', the telemetry technology of the United States is very powerful, whether it is the phased radar on the plane or the Hubble on the track, our technology is too far behind, this is a fact, but this is also the breakthrough point of our program." The province of Sioux wrote the word LRO next to the circle above, and marked the words 50km. Then I drew a figure of an eye.
"According to the requirements of the program provided by Mr. Nie, our equipment can neither be 'seen clearly' nor 'heard clearly', so I sifted through the equipment data of the two satellites and found the starting point." As he spoke, Su Province marked the words 40KM next to the circle that represented the Changguang telemetry satellite. Next, I drew a human ear on the side.
"Although the reception capability of the two satellites in the X-band is the same, and even the LRO's answering ability is better than that of the long light, it is much inferior in the other band. For example, the S-band. As he spoke, he drew two lines with his pen, one fluctuating gently and the other fluctuating extremely violently.
"Because at the beginning of the design, the main function of Changguang is for ground survey, so for the ground radio signal, its trust sensitivity is higher, and the packet loss rate is lower. In other words, the LRO is clairvoyant, but behind the ear. Changguang is normal vision, but compared to LRO, he has tailwind ears. Su Province made an analogy and amused himself.
"Then, let's look at the orbital height," he said, drawing a dotted line of orbit in each of the two circles, and a column at the lower end of the whiteboard, "The higher the orbit, the wider the detection area of the satellite in orbit, and the greater the longitude spacing of its orbit correspondingly." The denser it is, the lower the degree of compactness. He drew several arc-shaped ripples in the position of the column, spreading into the air, which at first glance looked like a WIFI signal.
"So, for this scheme, we can almost find the detection blank interval of the LRO, and only send the signal to the long light, and it is not perceived by the LRO." After Su Province finished speaking, he erased the circle representing LRO, so only the ground base station and the circle representing the Changguang satellite were left on the whiteboard.
"Of course, this is based on our knowledge of the precise orbital parameters of the two satellites, otherwise we can only send information with S-band signals, so that the long light can be received, so that the LRO can not hear clearly." Su Province shrugged helplessly, and then spread his hands.
After listening to him, Di Zhexiao took a breath first, followed by Nie Peng, and the long inhalation sound seemed to drain the air in the entire room, until Jiaying felt panicked, and the two exhaled in unison.
Then there was a sense of relief.
At this point, the problem that plagued them to dock with the Changguang satellite has finally been solved, how can they not be happy. It is precisely because of this incident that Father Di and Nie Peng are very pleased to see the professional ability of Su Province, after all, Su Province, which is still in the observation period, can complete this seemingly "detached from reality" task plan to the letter, and the theoretical logic is reasonable and well-founded, which is really commendable.
After the two of them vomited out the depression and boredom in their chests, they nodded to each other, and understood what each other meant: it was time to test Su Province and see if they could pull him into the core team.
These jobs are naturally handed over to Di's father, after all, Lao Jianghu can get the answers he wants without leaving a trace, and Nie Peng is far from being able to pull the relationship closely.
For example, his image at the moment, in the eyes of Jiaying's father, is an out-and-out "pioneer" mark, but he himself knows nothing, he will only bury his head and head towards his destination, and vow not to give up until he reaches his goal.
Di Zhexiao took advantage of the four-person meeting, while asking a few more layman's questions, while testing the personality of Su Province, a few words of kung fu began to nod frequently, Nie Peng and Jiaying were stealing teachers on the side, and when they heard the key questions, they also pondered how they should answer, but where is the human heart so easy to figure out, before they understood what was going on, Di Zhexiao had already signaled that his questions were finished, and he could conduct a physical test.